Home / 404,426.77-604,271.07-390,283.11

Finding the Fourth Proportional to 404,426.77, 604,271.07 and 390,283.11

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Solution

The fourth proportional to 404,426.77, 604,271.07 and 390,283.11 is: 583,138.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,426.77 : 604,271.07 = 390,283.11 : x
  2. Step 2: Convert to fraction form
    404,426.77/604,271.07 = 390,283.11/x
  3. Step 3: Cross multiply
    404,426.77x = 604,271.07 × 390,283.11
  4. Step 4: Simplify right side
    404,426.77x = 235,836,790,436.98
  5. Step 5: Solve for x
    x = 235,836,790,436.98/404,426.77
  6. Step 6: Final answer
    x = 583,138.43

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.