Home / 868,430.20-1,303,811.70-554,279.80

Finding the Fourth Proportional to 868,430.20, 1,303,811.70 and 554,279.80

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Solution

The fourth proportional to 868,430.20, 1,303,811.70 and 554,279.80 is: 832,164.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,430.20 : 1,303,811.70 = 554,279.80 : x
  2. Step 2: Convert to fraction form
    868,430.20/1,303,811.70 = 554,279.80/x
  3. Step 3: Cross multiply
    868,430.20x = 1,303,811.70 × 554,279.80
  4. Step 4: Simplify right side
    868,430.20x = 722,676,488,313.66
  5. Step 5: Solve for x
    x = 722,676,488,313.66/868,430.20
  6. Step 6: Final answer
    x = 832,164.16

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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.