Home / 691,167.20-1,036,750.80-292,258.40

Finding the Fourth Proportional to 691,167.20, 1,036,750.80 and 292,258.40

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Solution

The fourth proportional to 691,167.20, 1,036,750.80 and 292,258.40 is: 438,387.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,167.20 : 1,036,750.80 = 292,258.40 : x
  2. Step 2: Convert to fraction form
    691,167.20/1,036,750.80 = 292,258.40/x
  3. Step 3: Cross multiply
    691,167.20x = 1,036,750.80 × 292,258.40
  4. Step 4: Simplify right side
    691,167.20x = 302,999,130,006.72
  5. Step 5: Solve for x
    x = 302,999,130,006.72/691,167.20
  6. Step 6: Final answer
    x = 438,387.60

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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.