Home / 912,570.60-1,368,399.06-281,402.40

Finding the Fourth Proportional to 912,570.60, 1,368,399.06 and 281,402.40

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Solution

The fourth proportional to 912,570.60, 1,368,399.06 and 281,402.40 is: 421,962.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,570.60 : 1,368,399.06 = 281,402.40 : x
  2. Step 2: Convert to fraction form
    912,570.60/1,368,399.06 = 281,402.40/x
  3. Step 3: Cross multiply
    912,570.60x = 1,368,399.06 × 281,402.40
  4. Step 4: Simplify right side
    912,570.60x = 385,070,779,641.74
  5. Step 5: Solve for x
    x = 385,070,779,641.74/912,570.60
  6. Step 6: Final answer
    x = 421,962.73

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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.