Home / 877,814.55-1,316,721.82-212,966.55

Finding the Fourth Proportional to 877,814.55, 1,316,721.82 and 212,966.55

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Solution

The fourth proportional to 877,814.55, 1,316,721.82 and 212,966.55 is: 319,449.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,814.55 : 1,316,721.82 = 212,966.55 : x
  2. Step 2: Convert to fraction form
    877,814.55/1,316,721.82 = 212,966.55/x
  3. Step 3: Cross multiply
    877,814.55x = 1,316,721.82 × 212,966.55
  4. Step 4: Simplify right side
    877,814.55x = 280,417,703,315.12
  5. Step 5: Solve for x
    x = 280,417,703,315.12/877,814.55
  6. Step 6: Final answer
    x = 319,449.82

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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.