Home / 1,071,643.74-1,607,465.58-323,689.74

Finding the Fourth Proportional to 1,071,643.74, 1,607,465.58 and 323,689.74

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Solution

The fourth proportional to 1,071,643.74, 1,607,465.58 and 323,689.74 is: 485,534.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,071,643.74 : 1,607,465.58 = 323,689.74 : x
  2. Step 2: Convert to fraction form
    1,071,643.74/1,607,465.58 = 323,689.74/x
  3. Step 3: Cross multiply
    1,071,643.74x = 1,607,465.58 × 323,689.74
  4. Step 4: Simplify right side
    1,071,643.74x = 520,320,115,649.15
  5. Step 5: Solve for x
    x = 520,320,115,649.15/1,071,643.74
  6. Step 6: Final answer
    x = 485,534.60

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.