Home / 1,069,520.64-1,604,283.12-438,321.12

Finding the Fourth Proportional to 1,069,520.64, 1,604,283.12 and 438,321.12

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Solution

The fourth proportional to 1,069,520.64, 1,604,283.12 and 438,321.12 is: 657,482.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,069,520.64 : 1,604,283.12 = 438,321.12 : x
  2. Step 2: Convert to fraction form
    1,069,520.64/1,604,283.12 = 438,321.12/x
  3. Step 3: Cross multiply
    1,069,520.64x = 1,604,283.12 × 438,321.12
  4. Step 4: Simplify right side
    1,069,520.64x = 703,191,173,955.49
  5. Step 5: Solve for x
    x = 703,191,173,955.49/1,069,520.64
  6. Step 6: Final answer
    x = 657,482.57

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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.