Home / 820,561.79-1,132,376.66-457,985.59

Finding the Fourth Proportional to 820,561.79, 1,132,376.66 and 457,985.59

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Solution

The fourth proportional to 820,561.79, 1,132,376.66 and 457,985.59 is: 632,020.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,561.79 : 1,132,376.66 = 457,985.59 : x
  2. Step 2: Convert to fraction form
    820,561.79/1,132,376.66 = 457,985.59/x
  3. Step 3: Cross multiply
    820,561.79x = 1,132,376.66 × 457,985.59
  4. Step 4: Simplify right side
    820,561.79x = 518,612,195,698.53
  5. Step 5: Solve for x
    x = 518,612,195,698.53/820,561.79
  6. Step 6: Final answer
    x = 632,020.89

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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.