Home / 470,046.24-648,766.08-288,853.20

Finding the Fourth Proportional to 470,046.24, 648,766.08 and 288,853.20

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Solution

The fourth proportional to 470,046.24, 648,766.08 and 288,853.20 is: 398,680.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,046.24 : 648,766.08 = 288,853.20 : x
  2. Step 2: Convert to fraction form
    470,046.24/648,766.08 = 288,853.20/x
  3. Step 3: Cross multiply
    470,046.24x = 648,766.08 × 288,853.20
  4. Step 4: Simplify right side
    470,046.24x = 187,398,158,259.46
  5. Step 5: Solve for x
    x = 187,398,158,259.46/470,046.24
  6. Step 6: Final answer
    x = 398,680.26

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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.