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Finding the Fourth Proportional to 704,557.50, 972,289.41 and 402,757.98

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Solution

The fourth proportional to 704,557.50, 972,289.41 and 402,757.98 is: 555,806.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,557.50 : 972,289.41 = 402,757.98 : x
  2. Step 2: Convert to fraction form
    704,557.50/972,289.41 = 402,757.98/x
  3. Step 3: Cross multiply
    704,557.50x = 972,289.41 × 402,757.98
  4. Step 4: Simplify right side
    704,557.50x = 391,597,318,746.99
  5. Step 5: Solve for x
    x = 391,597,318,746.99/704,557.50
  6. Step 6: Final answer
    x = 555,806.05

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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.