Home / 748,930.80-1,123,396.20-496,988.40

Finding the Fourth Proportional to 748,930.80, 1,123,396.20 and 496,988.40

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Solution

The fourth proportional to 748,930.80, 1,123,396.20 and 496,988.40 is: 745,482.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,930.80 : 1,123,396.20 = 496,988.40 : x
  2. Step 2: Convert to fraction form
    748,930.80/1,123,396.20 = 496,988.40/x
  3. Step 3: Cross multiply
    748,930.80x = 1,123,396.20 × 496,988.40
  4. Step 4: Simplify right side
    748,930.80x = 558,314,880,004.08
  5. Step 5: Solve for x
    x = 558,314,880,004.08/748,930.80
  6. Step 6: Final answer
    x = 745,482.60

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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.