Home / 807,851.61-1,211,646.13-381,386.61

Finding the Fourth Proportional to 807,851.61, 1,211,646.13 and 381,386.61

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Solution

The fourth proportional to 807,851.61, 1,211,646.13 and 381,386.61 is: 572,017.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,851.61 : 1,211,646.13 = 381,386.61 : x
  2. Step 2: Convert to fraction form
    807,851.61/1,211,646.13 = 381,386.61/x
  3. Step 3: Cross multiply
    807,851.61x = 1,211,646.13 × 381,386.61
  4. Step 4: Simplify right side
    807,851.61x = 462,105,610,040.32
  5. Step 5: Solve for x
    x = 462,105,610,040.32/807,851.61
  6. Step 6: Final answer
    x = 572,017.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.