Home / 819,061.92-1,130,397.36-456,518.88

Finding the Fourth Proportional to 819,061.92, 1,130,397.36 and 456,518.88

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Solution

The fourth proportional to 819,061.92, 1,130,397.36 and 456,518.88 is: 630,047.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,061.92 : 1,130,397.36 = 456,518.88 : x
  2. Step 2: Convert to fraction form
    819,061.92/1,130,397.36 = 456,518.88/x
  3. Step 3: Cross multiply
    819,061.92x = 1,130,397.36 × 456,518.88
  4. Step 4: Simplify right side
    819,061.92x = 516,047,736,742.16
  5. Step 5: Solve for x
    x = 516,047,736,742.16/819,061.92
  6. Step 6: Final answer
    x = 630,047.28

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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.