Home / 879,245.88-1,213,359.31-497,264.46

Finding the Fourth Proportional to 879,245.88, 1,213,359.31 and 497,264.46

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Solution

The fourth proportional to 879,245.88, 1,213,359.31 and 497,264.46 is: 686,224.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,245.88 : 1,213,359.31 = 497,264.46 : x
  2. Step 2: Convert to fraction form
    879,245.88/1,213,359.31 = 497,264.46/x
  3. Step 3: Cross multiply
    879,245.88x = 1,213,359.31 × 497,264.46
  4. Step 4: Simplify right side
    879,245.88x = 603,360,462,073.12
  5. Step 5: Solve for x
    x = 603,360,462,073.12/879,245.88
  6. Step 6: Final answer
    x = 686,224.95

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1.5x scale

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.