Home / 877,621.60-1,316,432.40-212,773.60

Finding the Fourth Proportional to 877,621.60, 1,316,432.40 and 212,773.60

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Solution

The fourth proportional to 877,621.60, 1,316,432.40 and 212,773.60 is: 319,160.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,621.60 : 1,316,432.40 = 212,773.60 : x
  2. Step 2: Convert to fraction form
    877,621.60/1,316,432.40 = 212,773.60/x
  3. Step 3: Cross multiply
    877,621.60x = 1,316,432.40 × 212,773.60
  4. Step 4: Simplify right side
    877,621.60x = 280,102,060,904.64
  5. Step 5: Solve for x
    x = 280,102,060,904.64/877,621.60
  6. Step 6: Final answer
    x = 319,160.40

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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.