Home / 982,900.32-1,356,820.84-660,797.16

Finding the Fourth Proportional to 982,900.32, 1,356,820.84 and 660,797.16

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Solution

The fourth proportional to 982,900.32, 1,356,820.84 and 660,797.16 is: 912,181.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    982,900.32 : 1,356,820.84 = 660,797.16 : x
  2. Step 2: Convert to fraction form
    982,900.32/1,356,820.84 = 660,797.16/x
  3. Step 3: Cross multiply
    982,900.32x = 1,356,820.84 × 660,797.16
  4. Step 4: Simplify right side
    982,900.32x = 896,583,357,700.82
  5. Step 5: Solve for x
    x = 896,583,357,700.82/982,900.32
  6. Step 6: Final answer
    x = 912,181.37

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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.