Home / 470,047.24-648,767.46-288,854.20

Finding the Fourth Proportional to 470,047.24, 648,767.46 and 288,854.20

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Solution

The fourth proportional to 470,047.24, 648,767.46 and 288,854.20 is: 398,681.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,047.24 : 648,767.46 = 288,854.20 : x
  2. Step 2: Convert to fraction form
    470,047.24/648,767.46 = 288,854.20/x
  3. Step 3: Cross multiply
    470,047.24x = 648,767.46 × 288,854.20
  4. Step 4: Simplify right side
    470,047.24x = 187,399,205,644.33
  5. Step 5: Solve for x
    x = 187,399,205,644.33/470,047.24
  6. Step 6: Final answer
    x = 398,681.64

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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.