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Finding the Fourth Proportional to 515,087.40, 772,959.15 and 301,854.90

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Solution

The fourth proportional to 515,087.40, 772,959.15 and 301,854.90 is: 452,974.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,087.40 : 772,959.15 = 301,854.90 : x
  2. Step 2: Convert to fraction form
    515,087.40/772,959.15 = 301,854.90/x
  3. Step 3: Cross multiply
    515,087.40x = 772,959.15 × 301,854.90
  4. Step 4: Simplify right side
    515,087.40x = 233,321,506,927.34
  5. Step 5: Solve for x
    x = 233,321,506,927.34/515,087.40
  6. Step 6: Final answer
    x = 452,974.60

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1.5x scale

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.