Home / 704,721.79-972,516.70-382,431.89

Finding the Fourth Proportional to 704,721.79, 972,516.70 and 382,431.89

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Solution

The fourth proportional to 704,721.79, 972,516.70 and 382,431.89 is: 527,756.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,721.79 : 972,516.70 = 382,431.89 : x
  2. Step 2: Convert to fraction form
    704,721.79/972,516.70 = 382,431.89/x
  3. Step 3: Cross multiply
    704,721.79x = 972,516.70 × 382,431.89
  4. Step 4: Simplify right side
    704,721.79x = 371,921,398,152.08
  5. Step 5: Solve for x
    x = 371,921,398,152.08/704,721.79
  6. Step 6: Final answer
    x = 527,756.35

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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.