Home / 748,840.80-1,123,358.40-369,955.20

Finding the Fourth Proportional to 748,840.80, 1,123,358.40 and 369,955.20

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Solution

The fourth proportional to 748,840.80, 1,123,358.40 and 369,955.20 is: 554,980.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,840.80 : 1,123,358.40 = 369,955.20 : x
  2. Step 2: Convert to fraction form
    748,840.80/1,123,358.40 = 369,955.20/x
  3. Step 3: Cross multiply
    748,840.80x = 1,123,358.40 × 369,955.20
  4. Step 4: Simplify right side
    748,840.80x = 415,592,281,543.68
  5. Step 5: Solve for x
    x = 415,592,281,543.68/748,840.80
  6. Step 6: Final answer
    x = 554,980.82

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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.