Home / 579,643.10-869,464.65-180,309.10

Finding the Fourth Proportional to 579,643.10, 869,464.65 and 180,309.10

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Solution

The fourth proportional to 579,643.10, 869,464.65 and 180,309.10 is: 270,463.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,643.10 : 869,464.65 = 180,309.10 : x
  2. Step 2: Convert to fraction form
    579,643.10/869,464.65 = 180,309.10/x
  3. Step 3: Cross multiply
    579,643.10x = 869,464.65 × 180,309.10
  4. Step 4: Simplify right side
    579,643.10x = 156,772,388,523.32
  5. Step 5: Solve for x
    x = 156,772,388,523.32/579,643.10
  6. Step 6: Final answer
    x = 270,463.65

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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.