Home / 909,869.12-1,255,213.38-527,674.40

Finding the Fourth Proportional to 909,869.12, 1,255,213.38 and 527,674.40

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Solution

The fourth proportional to 909,869.12, 1,255,213.38 and 527,674.40 is: 727,955.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,869.12 : 1,255,213.38 = 527,674.40 : x
  2. Step 2: Convert to fraction form
    909,869.12/1,255,213.38 = 527,674.40/x
  3. Step 3: Cross multiply
    909,869.12x = 1,255,213.38 × 527,674.40
  4. Step 4: Simplify right side
    909,869.12x = 662,343,967,163.47
  5. Step 5: Solve for x
    x = 662,343,967,163.47/909,869.12
  6. Step 6: Final answer
    x = 727,955.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.