Home / 956,990.48-1,320,634.66-521,425.98

Finding the Fourth Proportional to 956,990.48, 1,320,634.66 and 521,425.98

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Solution

The fourth proportional to 956,990.48, 1,320,634.66 and 521,425.98 is: 719,561.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    956,990.48 : 1,320,634.66 = 521,425.98 : x
  2. Step 2: Convert to fraction form
    956,990.48/1,320,634.66 = 521,425.98/x
  3. Step 3: Cross multiply
    956,990.48x = 1,320,634.66 × 521,425.98
  4. Step 4: Simplify right side
    956,990.48x = 688,613,221,812.47
  5. Step 5: Solve for x
    x = 688,613,221,812.47/956,990.48
  6. Step 6: Final answer
    x = 719,561.20

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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.