Home / 889,031.68-1,226,731.63-539,990.39

Finding the Fourth Proportional to 889,031.68, 1,226,731.63 and 539,990.39

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Solution

The fourth proportional to 889,031.68, 1,226,731.63 and 539,990.39 is: 745,106.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,031.68 : 1,226,731.63 = 539,990.39 : x
  2. Step 2: Convert to fraction form
    889,031.68/1,226,731.63 = 539,990.39/x
  3. Step 3: Cross multiply
    889,031.68x = 1,226,731.63 × 539,990.39
  4. Step 4: Simplify right side
    889,031.68x = 662,423,291,309.04
  5. Step 5: Solve for x
    x = 662,423,291,309.04/889,031.68
  6. Step 6: Final answer
    x = 745,106.51

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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.