Home / 542,631.56-748,878.90-316,272.20

Finding the Fourth Proportional to 542,631.56, 748,878.90 and 316,272.20

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Solution

The fourth proportional to 542,631.56, 748,878.90 and 316,272.20 is: 436,483.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,631.56 : 748,878.90 = 316,272.20 : x
  2. Step 2: Convert to fraction form
    542,631.56/748,878.90 = 316,272.20/x
  3. Step 3: Cross multiply
    542,631.56x = 748,878.90 × 316,272.20
  4. Step 4: Simplify right side
    542,631.56x = 236,849,577,236.58
  5. Step 5: Solve for x
    x = 236,849,577,236.58/542,631.56
  6. Step 6: Final answer
    x = 436,483.23

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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.