Home / 877,566.20-1,316,349.29-212,718.20

Finding the Fourth Proportional to 877,566.20, 1,316,349.29 and 212,718.20

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Solution

The fourth proportional to 877,566.20, 1,316,349.29 and 212,718.20 is: 319,077.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,566.20 : 1,316,349.29 = 212,718.20 : x
  2. Step 2: Convert to fraction form
    877,566.20/1,316,349.29 = 212,718.20/x
  3. Step 3: Cross multiply
    877,566.20x = 1,316,349.29 × 212,718.20
  4. Step 4: Simplify right side
    877,566.20x = 280,011,443,894.74
  5. Step 5: Solve for x
    x = 280,011,443,894.74/877,566.20
  6. Step 6: Final answer
    x = 319,077.29

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Similar ratio
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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.