Home / 982,875.58-1,356,786.78-660,772.51

Finding the Fourth Proportional to 982,875.58, 1,356,786.78 and 660,772.51

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Solution

The fourth proportional to 982,875.58, 1,356,786.78 and 660,772.51 is: 912,147.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    982,875.58 : 1,356,786.78 = 660,772.51 : x
  2. Step 2: Convert to fraction form
    982,875.58/1,356,786.78 = 660,772.51/x
  3. Step 3: Cross multiply
    982,875.58x = 1,356,786.78 × 660,772.51
  4. Step 4: Simplify right side
    982,875.58x = 896,527,406,155.42
  5. Step 5: Solve for x
    x = 896,527,406,155.42/982,875.58
  6. Step 6: Final answer
    x = 912,147.40

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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.