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Finding the Fourth Proportional to 651,726.80, 977,590.20 and 452,661.20

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Solution

The fourth proportional to 651,726.80, 977,590.20 and 452,661.20 is: 678,991.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,726.80 : 977,590.20 = 452,661.20 : x
  2. Step 2: Convert to fraction form
    651,726.80/977,590.20 = 452,661.20/x
  3. Step 3: Cross multiply
    651,726.80x = 977,590.20 × 452,661.20
  4. Step 4: Simplify right side
    651,726.80x = 442,517,153,040.24
  5. Step 5: Solve for x
    x = 442,517,153,040.24/651,726.80
  6. Step 6: Final answer
    x = 678,991.80

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Similar ratio
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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.