Home / 1,553,443.92-2,329,082.91-688,407.80

Finding the Fourth Proportional to 1,553,443.92, 2,329,082.91 and 688,407.80

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Solution

The fourth proportional to 1,553,443.92, 2,329,082.91 and 688,407.80 is: 1,032,131.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,553,443.92 : 2,329,082.91 = 688,407.80 : x
  2. Step 2: Convert to fraction form
    1,553,443.92/2,329,082.91 = 688,407.80/x
  3. Step 3: Cross multiply
    1,553,443.92x = 2,329,082.91 × 688,407.80
  4. Step 4: Simplify right side
    1,553,443.92x = 1,603,358,830,445.28
  5. Step 5: Solve for x
    x = 1,603,358,830,445.28/1,553,443.92
  6. Step 6: Final answer
    x = 1,032,131.77

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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.