Home / 745,785.70-1,116,054.15-520,087.30

Finding the Fourth Proportional to 745,785.70, 1,116,054.15 and 520,087.30

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Solution

The fourth proportional to 745,785.70, 1,116,054.15 and 520,087.30 is: 778,300.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,785.70 : 1,116,054.15 = 520,087.30 : x
  2. Step 2: Convert to fraction form
    745,785.70/1,116,054.15 = 520,087.30/x
  3. Step 3: Cross multiply
    745,785.70x = 1,116,054.15 × 520,087.30
  4. Step 4: Simplify right side
    745,785.70x = 580,445,589,527.30
  5. Step 5: Solve for x
    x = 580,445,589,527.30/745,785.70
  6. Step 6: Final answer
    x = 778,300.78

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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.