Home / 492,541.40-679,698.06-277,681.70

Finding the Fourth Proportional to 492,541.40, 679,698.06 and 277,681.70

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Solution

The fourth proportional to 492,541.40, 679,698.06 and 277,681.70 is: 383,195.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,541.40 : 679,698.06 = 277,681.70 : x
  2. Step 2: Convert to fraction form
    492,541.40/679,698.06 = 277,681.70/x
  3. Step 3: Cross multiply
    492,541.40x = 679,698.06 × 277,681.70
  4. Step 4: Simplify right side
    492,541.40x = 188,739,712,787.50
  5. Step 5: Solve for x
    x = 188,739,712,787.50/492,541.40
  6. Step 6: Final answer
    x = 383,195.63

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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.