Home / 860,182.80-1,187,077.92-472,978.08

Finding the Fourth Proportional to 860,182.80, 1,187,077.92 and 472,978.08

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Solution

The fourth proportional to 860,182.80, 1,187,077.92 and 472,978.08 is: 652,723.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,182.80 : 1,187,077.92 = 472,978.08 : x
  2. Step 2: Convert to fraction form
    860,182.80/1,187,077.92 = 472,978.08/x
  3. Step 3: Cross multiply
    860,182.80x = 1,187,077.92 × 472,978.08
  4. Step 4: Simplify right side
    860,182.80x = 561,461,835,411.99
  5. Step 5: Solve for x
    x = 561,461,835,411.99/860,182.80
  6. Step 6: Final answer
    x = 652,723.86

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1.5x scale

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.