Home / 868,985.80-1,303,478.70-371,321.80

Finding the Fourth Proportional to 868,985.80, 1,303,478.70 and 371,321.80

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Solution

The fourth proportional to 868,985.80, 1,303,478.70 and 371,321.80 is: 556,982.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,985.80 : 1,303,478.70 = 371,321.80 : x
  2. Step 2: Convert to fraction form
    868,985.80/1,303,478.70 = 371,321.80/x
  3. Step 3: Cross multiply
    868,985.80x = 1,303,478.70 × 371,321.80
  4. Step 4: Simplify right side
    868,985.80x = 484,010,057,145.66
  5. Step 5: Solve for x
    x = 484,010,057,145.66/868,985.80
  6. Step 6: Final answer
    x = 556,982.70

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Similar ratio
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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.