Home / 766,513.92-1,057,821.90-426,982.32

Finding the Fourth Proportional to 766,513.92, 1,057,821.90 and 426,982.32

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Solution

The fourth proportional to 766,513.92, 1,057,821.90 and 426,982.32 is: 589,253.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,513.92 : 1,057,821.90 = 426,982.32 : x
  2. Step 2: Convert to fraction form
    766,513.92/1,057,821.90 = 426,982.32/x
  3. Step 3: Cross multiply
    766,513.92x = 1,057,821.90 × 426,982.32
  4. Step 4: Simplify right side
    766,513.92x = 451,671,249,008.81
  5. Step 5: Solve for x
    x = 451,671,249,008.81/766,513.92
  6. Step 6: Final answer
    x = 589,253.81

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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.