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Finding the Fourth Proportional to 739,604.52, 1,020,716.64 and 417,328.20

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Solution

The fourth proportional to 739,604.52, 1,020,716.64 and 417,328.20 is: 575,948.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,604.52 : 1,020,716.64 = 417,328.20 : x
  2. Step 2: Convert to fraction form
    739,604.52/1,020,716.64 = 417,328.20/x
  3. Step 3: Cross multiply
    739,604.52x = 1,020,716.64 × 417,328.20
  4. Step 4: Simplify right side
    739,604.52x = 425,973,838,081.25
  5. Step 5: Solve for x
    x = 425,973,838,081.25/739,604.52
  6. Step 6: Final answer
    x = 575,948.13

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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.