Home / 1,020,373.20-1,530,781.20-310,382.79

Finding the Fourth Proportional to 1,020,373.20, 1,530,781.20 and 310,382.79

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Solution

The fourth proportional to 1,020,373.20, 1,530,781.20 and 310,382.79 is: 465,641.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,373.20 : 1,530,781.20 = 310,382.79 : x
  2. Step 2: Convert to fraction form
    1,020,373.20/1,530,781.20 = 310,382.79/x
  3. Step 3: Cross multiply
    1,020,373.20x = 1,530,781.20 × 310,382.79
  4. Step 4: Simplify right side
    1,020,373.20x = 475,128,133,995.12
  5. Step 5: Solve for x
    x = 475,128,133,995.12/1,020,373.20
  6. Step 6: Final answer
    x = 465,641.53

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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.