Home / 820,528.47-1,132,386.21-458,022.96

Finding the Fourth Proportional to 820,528.47, 1,132,386.21 and 458,022.96

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Solution

The fourth proportional to 820,528.47, 1,132,386.21 and 458,022.96 is: 632,103.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,528.47 : 1,132,386.21 = 458,022.96 : x
  2. Step 2: Convert to fraction form
    820,528.47/1,132,386.21 = 458,022.96/x
  3. Step 3: Cross multiply
    820,528.47x = 1,132,386.21 × 458,022.96
  4. Step 4: Simplify right side
    820,528.47x = 518,658,883,767.38
  5. Step 5: Solve for x
    x = 518,658,883,767.38/820,528.47
  6. Step 6: Final answer
    x = 632,103.46

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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.