Home / 1,415,312.20-2,123,117.34-816,259.96

Finding the Fourth Proportional to 1,415,312.20, 2,123,117.34 and 816,259.96

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Solution

The fourth proportional to 1,415,312.20, 2,123,117.34 and 816,259.96 is: 1,224,475.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,415,312.20 : 2,123,117.34 = 816,259.96 : x
  2. Step 2: Convert to fraction form
    1,415,312.20/2,123,117.34 = 816,259.96/x
  3. Step 3: Cross multiply
    1,415,312.20x = 2,123,117.34 × 816,259.96
  4. Step 4: Simplify right side
    1,415,312.20x = 1,733,015,675,023.71
  5. Step 5: Solve for x
    x = 1,733,015,675,023.71/1,415,312.20
  6. Step 6: Final answer
    x = 1,224,475.90

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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.