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Finding the Fourth Proportional to 676,473.52, 931,409.04 and 574,287.28

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Solution

The fourth proportional to 676,473.52, 931,409.04 and 574,287.28 is: 790,712.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,473.52 : 931,409.04 = 574,287.28 : x
  2. Step 2: Convert to fraction form
    676,473.52/931,409.04 = 574,287.28/x
  3. Step 3: Cross multiply
    676,473.52x = 931,409.04 × 574,287.28
  4. Step 4: Simplify right side
    676,473.52x = 534,896,364,149.01
  5. Step 5: Solve for x
    x = 534,896,364,149.01/676,473.52
  6. Step 6: Final answer
    x = 790,712.94

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.