Home / 1,314,500.10-1,971,750.15-515,807.70

Finding the Fourth Proportional to 1,314,500.10, 1,971,750.15 and 515,807.70

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Solution

The fourth proportional to 1,314,500.10, 1,971,750.15 and 515,807.70 is: 773,711.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,314,500.10 : 1,971,750.15 = 515,807.70 : x
  2. Step 2: Convert to fraction form
    1,314,500.10/1,971,750.15 = 515,807.70/x
  3. Step 3: Cross multiply
    1,314,500.10x = 1,971,750.15 × 515,807.70
  4. Step 4: Simplify right side
    1,314,500.10x = 1,017,043,909,846.16
  5. Step 5: Solve for x
    x = 1,017,043,909,846.16/1,314,500.10
  6. Step 6: Final answer
    x = 773,711.55

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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.