Home / 928,590.89-1,281,986.34-710,397.54

Finding the Fourth Proportional to 928,590.89, 1,281,986.34 and 710,397.54

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Solution

The fourth proportional to 928,590.89, 1,281,986.34 and 710,397.54 is: 980,754.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,590.89 : 1,281,986.34 = 710,397.54 : x
  2. Step 2: Convert to fraction form
    928,590.89/1,281,986.34 = 710,397.54/x
  3. Step 3: Cross multiply
    928,590.89x = 1,281,986.34 × 710,397.54
  4. Step 4: Simplify right side
    928,590.89x = 910,719,938,697.62
  5. Step 5: Solve for x
    x = 910,719,938,697.62/928,590.89
  6. Step 6: Final answer
    x = 980,754.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.