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Finding the Fourth Proportional to 657,598.56, 907,433.76 and 402,914.88

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Solution

The fourth proportional to 657,598.56, 907,433.76 and 402,914.88 is: 555,990.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,598.56 : 907,433.76 = 402,914.88 : x
  2. Step 2: Convert to fraction form
    657,598.56/907,433.76 = 402,914.88/x
  3. Step 3: Cross multiply
    657,598.56x = 907,433.76 × 402,914.88
  4. Step 4: Simplify right side
    657,598.56x = 365,618,564,518.35
  5. Step 5: Solve for x
    x = 365,618,564,518.35/657,598.56
  6. Step 6: Final answer
    x = 555,990.52

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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.