Home / 1,020,812.20-1,531,544.70-310,975.40

Finding the Fourth Proportional to 1,020,812.20, 1,531,544.70 and 310,975.40

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Solution

The fourth proportional to 1,020,812.20, 1,531,544.70 and 310,975.40 is: 466,562.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,812.20 : 1,531,544.70 = 310,975.40 : x
  2. Step 2: Convert to fraction form
    1,020,812.20/1,531,544.70 = 310,975.40/x
  3. Step 3: Cross multiply
    1,020,812.20x = 1,531,544.70 × 310,975.40
  4. Step 4: Simplify right side
    1,020,812.20x = 476,272,725,700.38
  5. Step 5: Solve for x
    x = 476,272,725,700.38/1,020,812.20
  6. Step 6: Final answer
    x = 466,562.53

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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.