Home / 877,520.76-1,316,281.14-212,672.76

Finding the Fourth Proportional to 877,520.76, 1,316,281.14 and 212,672.76

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Solution

The fourth proportional to 877,520.76, 1,316,281.14 and 212,672.76 is: 319,009.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,520.76 : 1,316,281.14 = 212,672.76 : x
  2. Step 2: Convert to fraction form
    877,520.76/1,316,281.14 = 212,672.76/x
  3. Step 3: Cross multiply
    877,520.76x = 1,316,281.14 × 212,672.76
  4. Step 4: Simplify right side
    877,520.76x = 279,937,142,979.75
  5. Step 5: Solve for x
    x = 279,937,142,979.75/877,520.76
  6. Step 6: Final answer
    x = 319,009.14

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1.5x scale

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.