Home / 1,020,710.16-1,531,286.64-310,719.78

Finding the Fourth Proportional to 1,020,710.16, 1,531,286.64 and 310,719.78

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Solution

The fourth proportional to 1,020,710.16, 1,531,286.64 and 310,719.78 is: 466,147.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,710.16 : 1,531,286.64 = 310,719.78 : x
  2. Step 2: Convert to fraction form
    1,020,710.16/1,531,286.64 = 310,719.78/x
  3. Step 3: Cross multiply
    1,020,710.16x = 1,531,286.64 × 310,719.78
  4. Step 4: Simplify right side
    1,020,710.16x = 475,801,047,897.74
  5. Step 5: Solve for x
    x = 475,801,047,897.74/1,020,710.16
  6. Step 6: Final answer
    x = 466,147.07

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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.