Home / 745,777.20-1,116,041.40-520,078.80

Finding the Fourth Proportional to 745,777.20, 1,116,041.40 and 520,078.80

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Solution

The fourth proportional to 745,777.20, 1,116,041.40 and 520,078.80 is: 778,288.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,777.20 : 1,116,041.40 = 520,078.80 : x
  2. Step 2: Convert to fraction form
    745,777.20/1,116,041.40 = 520,078.80/x
  3. Step 3: Cross multiply
    745,777.20x = 1,116,041.40 × 520,078.80
  4. Step 4: Simplify right side
    745,777.20x = 580,429,472,062.32
  5. Step 5: Solve for x
    x = 580,429,472,062.32/745,777.20
  6. Step 6: Final answer
    x = 778,288.04

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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.