Home / 749,348.61-1,124,391.97-349,931.33

Finding the Fourth Proportional to 749,348.61, 1,124,391.97 and 349,931.33

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Solution

The fourth proportional to 749,348.61, 1,124,391.97 and 349,931.33 is: 525,069.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,348.61 : 1,124,391.97 = 349,931.33 : x
  2. Step 2: Convert to fraction form
    749,348.61/1,124,391.97 = 349,931.33/x
  3. Step 3: Cross multiply
    749,348.61x = 1,124,391.97 × 349,931.33
  4. Step 4: Simplify right side
    749,348.61x = 393,459,979,439.57
  5. Step 5: Solve for x
    x = 393,459,979,439.57/749,348.61
  6. Step 6: Final answer
    x = 525,069.34

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Double scale
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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.