Home / 898,446.80-1,349,225.40-478,542.80

Finding the Fourth Proportional to 898,446.80, 1,349,225.40 and 478,542.80

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Solution

The fourth proportional to 898,446.80, 1,349,225.40 and 478,542.80 is: 718,642.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,446.80 : 1,349,225.40 = 478,542.80 : x
  2. Step 2: Convert to fraction form
    898,446.80/1,349,225.40 = 478,542.80/x
  3. Step 3: Cross multiply
    898,446.80x = 1,349,225.40 × 478,542.80
  4. Step 4: Simplify right side
    898,446.80x = 645,662,100,747.12
  5. Step 5: Solve for x
    x = 645,662,100,747.12/898,446.80
  6. Step 6: Final answer
    x = 718,642.55

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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.