Home / 675,389.84-1,011,461.24-386,325.38

Finding the Fourth Proportional to 675,389.84, 1,011,461.24 and 386,325.38

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Solution

The fourth proportional to 675,389.84, 1,011,461.24 and 386,325.38 is: 578,559.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,389.84 : 1,011,461.24 = 386,325.38 : x
  2. Step 2: Convert to fraction form
    675,389.84/1,011,461.24 = 386,325.38/x
  3. Step 3: Cross multiply
    675,389.84x = 1,011,461.24 × 386,325.38
  4. Step 4: Simplify right side
    675,389.84x = 390,753,151,392.74
  5. Step 5: Solve for x
    x = 390,753,151,392.74/675,389.84
  6. Step 6: Final answer
    x = 578,559.42

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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.