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Finding the Fourth Proportional to 492,624.20, 679,820.28 and 277,763.02

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Solution

The fourth proportional to 492,624.20, 679,820.28 and 277,763.02 is: 383,312.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,624.20 : 679,820.28 = 277,763.02 : x
  2. Step 2: Convert to fraction form
    492,624.20/679,820.28 = 277,763.02/x
  3. Step 3: Cross multiply
    492,624.20x = 679,820.28 × 277,763.02
  4. Step 4: Simplify right side
    492,624.20x = 188,828,934,030.05
  5. Step 5: Solve for x
    x = 188,828,934,030.05/492,624.20
  6. Step 6: Final answer
    x = 383,312.34

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1.5x scale

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.