Home / 748,740.90-1,123,500.15-328,059.30

Finding the Fourth Proportional to 748,740.90, 1,123,500.15 and 328,059.30

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Solution

The fourth proportional to 748,740.90, 1,123,500.15 and 328,059.30 is: 492,259.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,740.90 : 1,123,500.15 = 328,059.30 : x
  2. Step 2: Convert to fraction form
    748,740.90/1,123,500.15 = 328,059.30/x
  3. Step 3: Cross multiply
    748,740.90x = 1,123,500.15 × 328,059.30
  4. Step 4: Simplify right side
    748,740.90x = 368,574,672,758.90
  5. Step 5: Solve for x
    x = 368,574,672,758.90/748,740.90
  6. Step 6: Final answer
    x = 492,259.30

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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.