Home / 820,424.66-1,132,242.90-457,919.16

Finding the Fourth Proportional to 820,424.66, 1,132,242.90 and 457,919.16

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Solution

The fourth proportional to 820,424.66, 1,132,242.90 and 457,919.16 is: 631,960.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,424.66 : 1,132,242.90 = 457,919.16 : x
  2. Step 2: Convert to fraction form
    820,424.66/1,132,242.90 = 457,919.16/x
  3. Step 3: Cross multiply
    820,424.66x = 1,132,242.90 × 457,919.16
  4. Step 4: Simplify right side
    820,424.66x = 518,475,717,683.96
  5. Step 5: Solve for x
    x = 518,475,717,683.96/820,424.66
  6. Step 6: Final answer
    x = 631,960.18

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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.