Home / 690,768.68-1,031,296.02-527,809.86

Finding the Fourth Proportional to 690,768.68, 1,031,296.02 and 527,809.86

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Solution

The fourth proportional to 690,768.68, 1,031,296.02 and 527,809.86 is: 788,003.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,768.68 : 1,031,296.02 = 527,809.86 : x
  2. Step 2: Convert to fraction form
    690,768.68/1,031,296.02 = 527,809.86/x
  3. Step 3: Cross multiply
    690,768.68x = 1,031,296.02 × 527,809.86
  4. Step 4: Simplify right side
    690,768.68x = 544,328,207,934.76
  5. Step 5: Solve for x
    x = 544,328,207,934.76/690,768.68
  6. Step 6: Final answer
    x = 788,003.60

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.