Home / 820,711.71-1,131,689.48-533,699.55

Finding the Fourth Proportional to 820,711.71, 1,131,689.48 and 533,699.55

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Solution

The fourth proportional to 820,711.71, 1,131,689.48 and 533,699.55 is: 735,924.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,711.71 : 1,131,689.48 = 533,699.55 : x
  2. Step 2: Convert to fraction form
    820,711.71/1,131,689.48 = 533,699.55/x
  3. Step 3: Cross multiply
    820,711.71x = 1,131,689.48 × 533,699.55
  4. Step 4: Simplify right side
    820,711.71x = 603,982,163,547.24
  5. Step 5: Solve for x
    x = 603,982,163,547.24/820,711.71
  6. Step 6: Final answer
    x = 735,924.88

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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.