Home / 456,498.60-684,747.90-432,004.20

Finding the Fourth Proportional to 456,498.60, 684,747.90 and 432,004.20

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Solution

The fourth proportional to 456,498.60, 684,747.90 and 432,004.20 is: 648,006.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,498.60 : 684,747.90 = 432,004.20 : x
  2. Step 2: Convert to fraction form
    456,498.60/684,747.90 = 432,004.20/x
  3. Step 3: Cross multiply
    456,498.60x = 684,747.90 × 432,004.20
  4. Step 4: Simplify right side
    456,498.60x = 295,813,968,741.18
  5. Step 5: Solve for x
    x = 295,813,968,741.18/456,498.60
  6. Step 6: Final answer
    x = 648,006.30

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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.