Home / 691,911.40-1,038,007.20-292,551.52

Finding the Fourth Proportional to 691,911.40, 1,038,007.20 and 292,551.52

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Solution

The fourth proportional to 691,911.40, 1,038,007.20 and 292,551.52 is: 438,886.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,911.40 : 1,038,007.20 = 292,551.52 : x
  2. Step 2: Convert to fraction form
    691,911.40/1,038,007.20 = 292,551.52/x
  3. Step 3: Cross multiply
    691,911.40x = 1,038,007.20 × 292,551.52
  4. Step 4: Simplify right side
    691,911.40x = 303,670,584,130.94
  5. Step 5: Solve for x
    x = 303,670,584,130.94/691,911.40
  6. Step 6: Final answer
    x = 438,886.52

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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.