Home / 753,357.81-1,039,640.95-413,826.06

Finding the Fourth Proportional to 753,357.81, 1,039,640.95 and 413,826.06

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Solution

The fourth proportional to 753,357.81, 1,039,640.95 and 413,826.06 is: 571,083.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,357.81 : 1,039,640.95 = 413,826.06 : x
  2. Step 2: Convert to fraction form
    753,357.81/1,039,640.95 = 413,826.06/x
  3. Step 3: Cross multiply
    753,357.81x = 1,039,640.95 × 413,826.06
  4. Step 4: Simplify right side
    753,357.81x = 430,230,518,153.16
  5. Step 5: Solve for x
    x = 430,230,518,153.16/753,357.81
  6. Step 6: Final answer
    x = 571,083.90

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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.