Home / 748,851.30-1,123,276.95-660,277.80

Finding the Fourth Proportional to 748,851.30, 1,123,276.95 and 660,277.80

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Solution

The fourth proportional to 748,851.30, 1,123,276.95 and 660,277.80 is: 990,416.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,851.30 : 1,123,276.95 = 660,277.80 : x
  2. Step 2: Convert to fraction form
    748,851.30/1,123,276.95 = 660,277.80/x
  3. Step 3: Cross multiply
    748,851.30x = 1,123,276.95 × 660,277.80
  4. Step 4: Simplify right side
    748,851.30x = 741,674,833,336.71
  5. Step 5: Solve for x
    x = 741,674,833,336.71/748,851.30
  6. Step 6: Final answer
    x = 990,416.70

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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.