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Finding the Fourth Proportional to 503,714.47, 695,272.53 and 402,445.03

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Solution

The fourth proportional to 503,714.47, 695,272.53 and 402,445.03 is: 555,491.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,714.47 : 695,272.53 = 402,445.03 : x
  2. Step 2: Convert to fraction form
    503,714.47/695,272.53 = 402,445.03/x
  3. Step 3: Cross multiply
    503,714.47x = 695,272.53 × 402,445.03
  4. Step 4: Simplify right side
    503,714.47x = 279,808,974,194.03
  5. Step 5: Solve for x
    x = 279,808,974,194.03/503,714.47
  6. Step 6: Final answer
    x = 555,491.24

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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.