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Finding the Fourth Proportional to 697,534.60, 962,564.80 and 387,457.24

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Solution

The fourth proportional to 697,534.60, 962,564.80 and 387,457.24 is: 534,672.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,534.60 : 962,564.80 = 387,457.24 : x
  2. Step 2: Convert to fraction form
    697,534.60/962,564.80 = 387,457.24/x
  3. Step 3: Cross multiply
    697,534.60x = 962,564.80 × 387,457.24
  4. Step 4: Simplify right side
    697,534.60x = 372,952,700,729.15
  5. Step 5: Solve for x
    x = 372,952,700,729.15/697,534.60
  6. Step 6: Final answer
    x = 534,672.69

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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.