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Finding the Fourth Proportional to 704,780.50, 972,597.59 and 382,490.52

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Solution

The fourth proportional to 704,780.50, 972,597.59 and 382,490.52 is: 527,837.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,780.50 : 972,597.59 = 382,490.52 : x
  2. Step 2: Convert to fraction form
    704,780.50/972,597.59 = 382,490.52/x
  3. Step 3: Cross multiply
    704,780.50x = 972,597.59 × 382,490.52
  4. Step 4: Simplify right side
    704,780.50x = 372,009,357,949.85
  5. Step 5: Solve for x
    x = 372,009,357,949.85/704,780.50
  6. Step 6: Final answer
    x = 527,837.19

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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.