Home / 813,541.59-1,122,307.70-511,901.91

Finding the Fourth Proportional to 813,541.59, 1,122,307.70 and 511,901.91

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Solution

The fourth proportional to 813,541.59, 1,122,307.70 and 511,901.91 is: 706,185.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,541.59 : 1,122,307.70 = 511,901.91 : x
  2. Step 2: Convert to fraction form
    813,541.59/1,122,307.70 = 511,901.91/x
  3. Step 3: Cross multiply
    813,541.59x = 1,122,307.70 × 511,901.91
  4. Step 4: Simplify right side
    813,541.59x = 574,511,452,678.20
  5. Step 5: Solve for x
    x = 574,511,452,678.20/813,541.59
  6. Step 6: Final answer
    x = 706,185.72

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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.