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Finding the Fourth Proportional to 560,040.80, 840,061.20 and 307,223.60

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Solution

The fourth proportional to 560,040.80, 840,061.20 and 307,223.60 is: 460,835.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,040.80 : 840,061.20 = 307,223.60 : x
  2. Step 2: Convert to fraction form
    560,040.80/840,061.20 = 307,223.60/x
  3. Step 3: Cross multiply
    560,040.80x = 840,061.20 × 307,223.60
  4. Step 4: Simplify right side
    560,040.80x = 258,086,626,084.32
  5. Step 5: Solve for x
    x = 258,086,626,084.32/560,040.80
  6. Step 6: Final answer
    x = 460,835.40

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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.