Home / 871,725.60-1,307,281.20-310,778.40

Finding the Fourth Proportional to 871,725.60, 1,307,281.20 and 310,778.40

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Solution

The fourth proportional to 871,725.60, 1,307,281.20 and 310,778.40 is: 466,058.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,725.60 : 1,307,281.20 = 310,778.40 : x
  2. Step 2: Convert to fraction form
    871,725.60/1,307,281.20 = 310,778.40/x
  3. Step 3: Cross multiply
    871,725.60x = 1,307,281.20 × 310,778.40
  4. Step 4: Simplify right side
    871,725.60x = 406,274,759,686.08
  5. Step 5: Solve for x
    x = 406,274,759,686.08/871,725.60
  6. Step 6: Final answer
    x = 466,058.08

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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.