Home / 916,638.20-1,377,030.90-636,702.20

Finding the Fourth Proportional to 916,638.20, 1,377,030.90 and 636,702.20

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Solution

The fourth proportional to 916,638.20, 1,377,030.90 and 636,702.20 is: 956,493.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,638.20 : 1,377,030.90 = 636,702.20 : x
  2. Step 2: Convert to fraction form
    916,638.20/1,377,030.90 = 636,702.20/x
  3. Step 3: Cross multiply
    916,638.20x = 1,377,030.90 × 636,702.20
  4. Step 4: Simplify right side
    916,638.20x = 876,758,603,497.98
  5. Step 5: Solve for x
    x = 876,758,603,497.98/916,638.20
  6. Step 6: Final answer
    x = 956,493.63

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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.