Home / 649,985.31-896,953.23-378,061.02

Finding the Fourth Proportional to 649,985.31, 896,953.23 and 378,061.02

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Solution

The fourth proportional to 649,985.31, 896,953.23 and 378,061.02 is: 521,708.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,985.31 : 896,953.23 = 378,061.02 : x
  2. Step 2: Convert to fraction form
    649,985.31/896,953.23 = 378,061.02/x
  3. Step 3: Cross multiply
    649,985.31x = 896,953.23 × 378,061.02
  4. Step 4: Simplify right side
    649,985.31x = 339,103,053,026.10
  5. Step 5: Solve for x
    x = 339,103,053,026.10/649,985.31
  6. Step 6: Final answer
    x = 521,708.80

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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.