Home / 730,478.04-1,008,040.32-408,190.77

Finding the Fourth Proportional to 730,478.04, 1,008,040.32 and 408,190.77

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Solution

The fourth proportional to 730,478.04, 1,008,040.32 and 408,190.77 is: 563,292.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,478.04 : 1,008,040.32 = 408,190.77 : x
  2. Step 2: Convert to fraction form
    730,478.04/1,008,040.32 = 408,190.77/x
  3. Step 3: Cross multiply
    730,478.04x = 1,008,040.32 × 408,190.77
  4. Step 4: Simplify right side
    730,478.04x = 411,472,754,411.85
  5. Step 5: Solve for x
    x = 411,472,754,411.85/730,478.04
  6. Step 6: Final answer
    x = 563,292.44

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.