Home / 680,931.40-1,021,397.10-260,152.60

Finding the Fourth Proportional to 680,931.40, 1,021,397.10 and 260,152.60

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Solution

The fourth proportional to 680,931.40, 1,021,397.10 and 260,152.60 is: 390,228.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,931.40 : 1,021,397.10 = 260,152.60 : x
  2. Step 2: Convert to fraction form
    680,931.40/1,021,397.10 = 260,152.60/x
  3. Step 3: Cross multiply
    680,931.40x = 1,021,397.10 × 260,152.60
  4. Step 4: Simplify right side
    680,931.40x = 265,719,111,197.46
  5. Step 5: Solve for x
    x = 265,719,111,197.46/680,931.40
  6. Step 6: Final answer
    x = 390,228.90

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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.