Home / 814,160.20-1,222,406.70-578,547.40

Finding the Fourth Proportional to 814,160.20, 1,222,406.70 and 578,547.40

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Solution

The fourth proportional to 814,160.20, 1,222,406.70 and 578,547.40 is: 868,649.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,160.20 : 1,222,406.70 = 578,547.40 : x
  2. Step 2: Convert to fraction form
    814,160.20/1,222,406.70 = 578,547.40/x
  3. Step 3: Cross multiply
    814,160.20x = 1,222,406.70 × 578,547.40
  4. Step 4: Simplify right side
    814,160.20x = 707,220,218,027.58
  5. Step 5: Solve for x
    x = 707,220,218,027.58/814,160.20
  6. Step 6: Final answer
    x = 868,649.95

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1.5x scale

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.