Home / 1,006,240.80-1,388,633.88-553,531.76

Finding the Fourth Proportional to 1,006,240.80, 1,388,633.88 and 553,531.76

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Solution

The fourth proportional to 1,006,240.80, 1,388,633.88 and 553,531.76 is: 763,885.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,006,240.80 : 1,388,633.88 = 553,531.76 : x
  2. Step 2: Convert to fraction form
    1,006,240.80/1,388,633.88 = 553,531.76/x
  3. Step 3: Cross multiply
    1,006,240.80x = 1,388,633.88 × 553,531.76
  4. Step 4: Simplify right side
    1,006,240.80x = 768,652,955,592.03
  5. Step 5: Solve for x
    x = 768,652,955,592.03/1,006,240.80
  6. Step 6: Final answer
    x = 763,885.70

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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.