Home / 745,785.20-1,116,053.40-520,086.80

Finding the Fourth Proportional to 745,785.20, 1,116,053.40 and 520,086.80

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Solution

The fourth proportional to 745,785.20, 1,116,053.40 and 520,086.80 is: 778,300.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,785.20 : 1,116,053.40 = 520,086.80 : x
  2. Step 2: Convert to fraction form
    745,785.20/1,116,053.40 = 520,086.80/x
  3. Step 3: Cross multiply
    745,785.20x = 1,116,053.40 × 520,086.80
  4. Step 4: Simplify right side
    745,785.20x = 580,444,641,435.12
  5. Step 5: Solve for x
    x = 580,444,641,435.12/745,785.20
  6. Step 6: Final answer
    x = 778,300.03

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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.