Home / 2,913,278.56-4,020,341.60-1,690,312.38

Finding the Fourth Proportional to 2,913,278.56, 4,020,341.60 and 1,690,312.38

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Solution

The fourth proportional to 2,913,278.56, 4,020,341.60 and 1,690,312.38 is: 2,332,641.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,913,278.56 : 4,020,341.60 = 1,690,312.38 : x
  2. Step 2: Convert to fraction form
    2,913,278.56/4,020,341.60 = 1,690,312.38/x
  3. Step 3: Cross multiply
    2,913,278.56x = 4,020,341.60 × 1,690,312.38
  4. Step 4: Simplify right side
    2,913,278.56x = 6,795,633,178,309.01
  5. Step 5: Solve for x
    x = 6,795,633,178,309.01/2,913,278.56
  6. Step 6: Final answer
    x = 2,332,641.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.