Home / 860,622.38-1,187,700.95-478,640.96

Finding the Fourth Proportional to 860,622.38, 1,187,700.95 and 478,640.96

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Solution

The fourth proportional to 860,622.38, 1,187,700.95 and 478,640.96 is: 660,547.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,622.38 : 1,187,700.95 = 478,640.96 : x
  2. Step 2: Convert to fraction form
    860,622.38/1,187,700.95 = 478,640.96/x
  3. Step 3: Cross multiply
    860,622.38x = 1,187,700.95 × 478,640.96
  4. Step 4: Simplify right side
    860,622.38x = 568,482,322,900.91
  5. Step 5: Solve for x
    x = 568,482,322,900.91/860,622.38
  6. Step 6: Final answer
    x = 660,547.92

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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.