Home / 1,331,347.38-1,997,123.16-384,726.30

Finding the Fourth Proportional to 1,331,347.38, 1,997,123.16 and 384,726.30

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Solution

The fourth proportional to 1,331,347.38, 1,997,123.16 and 384,726.30 is: 577,118.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331,347.38 : 1,997,123.16 = 384,726.30 : x
  2. Step 2: Convert to fraction form
    1,331,347.38/1,997,123.16 = 384,726.30/x
  3. Step 3: Cross multiply
    1,331,347.38x = 1,997,123.16 × 384,726.30
  4. Step 4: Simplify right side
    1,331,347.38x = 768,345,803,991.11
  5. Step 5: Solve for x
    x = 768,345,803,991.11/1,331,347.38
  6. Step 6: Final answer
    x = 577,118.95

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.