Home / 709,621.80-1,064,432.70-681,628.20

Finding the Fourth Proportional to 709,621.80, 1,064,432.70 and 681,628.20

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Solution

The fourth proportional to 709,621.80, 1,064,432.70 and 681,628.20 is: 1,022,442.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,621.80 : 1,064,432.70 = 681,628.20 : x
  2. Step 2: Convert to fraction form
    709,621.80/1,064,432.70 = 681,628.20/x
  3. Step 3: Cross multiply
    709,621.80x = 1,064,432.70 × 681,628.20
  4. Step 4: Simplify right side
    709,621.80x = 725,547,345,322.14
  5. Step 5: Solve for x
    x = 725,547,345,322.14/709,621.80
  6. Step 6: Final answer
    x = 1,022,442.30

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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.