Home / 877,539.89-1,316,309.85-212,691.89

Finding the Fourth Proportional to 877,539.89, 1,316,309.85 and 212,691.89

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Solution

The fourth proportional to 877,539.89, 1,316,309.85 and 212,691.89 is: 319,037.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,539.89 : 1,316,309.85 = 212,691.89 : x
  2. Step 2: Convert to fraction form
    877,539.89/1,316,309.85 = 212,691.89/x
  3. Step 3: Cross multiply
    877,539.89x = 1,316,309.85 × 212,691.89
  4. Step 4: Simplify right side
    877,539.89x = 279,968,429,822.12
  5. Step 5: Solve for x
    x = 279,968,429,822.12/877,539.89
  6. Step 6: Final answer
    x = 319,037.84

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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.