Home / 747,143.97-1,031,055.21-407,612.22

Finding the Fourth Proportional to 747,143.97, 1,031,055.21 and 407,612.22

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Solution

The fourth proportional to 747,143.97, 1,031,055.21 and 407,612.22 is: 562,502.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,143.97 : 1,031,055.21 = 407,612.22 : x
  2. Step 2: Convert to fraction form
    747,143.97/1,031,055.21 = 407,612.22/x
  3. Step 3: Cross multiply
    747,143.97x = 1,031,055.21 × 407,612.22
  4. Step 4: Simplify right side
    747,143.97x = 420,270,703,090.67
  5. Step 5: Solve for x
    x = 420,270,703,090.67/747,143.97
  6. Step 6: Final answer
    x = 562,502.97

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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.