Home / 748,728.40-1,122,327.15-369,065.20

Finding the Fourth Proportional to 748,728.40, 1,122,327.15 and 369,065.20

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Solution

The fourth proportional to 748,728.40, 1,122,327.15 and 369,065.20 is: 553,220.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,728.40 : 1,122,327.15 = 369,065.20 : x
  2. Step 2: Convert to fraction form
    748,728.40/1,122,327.15 = 369,065.20/x
  3. Step 3: Cross multiply
    748,728.40x = 1,122,327.15 × 369,065.20
  4. Step 4: Simplify right side
    748,728.40x = 414,211,894,080.18
  5. Step 5: Solve for x
    x = 414,211,894,080.18/748,728.40
  6. Step 6: Final answer
    x = 553,220.49

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Double scale
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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.