Home / 1,307,405.80-1,961,805.30-508,713.40

Finding the Fourth Proportional to 1,307,405.80, 1,961,805.30 and 508,713.40

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Solution

The fourth proportional to 1,307,405.80, 1,961,805.30 and 508,713.40 is: 763,341.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,307,405.80 : 1,961,805.30 = 508,713.40 : x
  2. Step 2: Convert to fraction form
    1,307,405.80/1,961,805.30 = 508,713.40/x
  3. Step 3: Cross multiply
    1,307,405.80x = 1,961,805.30 × 508,713.40
  4. Step 4: Simplify right side
    1,307,405.80x = 997,996,644,301.02
  5. Step 5: Solve for x
    x = 997,996,644,301.02/1,307,405.80
  6. Step 6: Final answer
    x = 763,341.15

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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.