Home / 730,330.60-1,007,756.04-408,000.64

Finding the Fourth Proportional to 730,330.60, 1,007,756.04 and 408,000.64

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Solution

The fourth proportional to 730,330.60, 1,007,756.04 and 408,000.64 is: 562,984.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,330.60 : 1,007,756.04 = 408,000.64 : x
  2. Step 2: Convert to fraction form
    730,330.60/1,007,756.04 = 408,000.64/x
  3. Step 3: Cross multiply
    730,330.60x = 1,007,756.04 × 408,000.64
  4. Step 4: Simplify right side
    730,330.60x = 411,165,109,283.87
  5. Step 5: Solve for x
    x = 411,165,109,283.87/730,330.60
  6. Step 6: Final answer
    x = 562,984.91

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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.