Home / 566,271.40-781,454.65-311,622.58

Finding the Fourth Proportional to 566,271.40, 781,454.65 and 311,622.58

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Solution

The fourth proportional to 566,271.40, 781,454.65 and 311,622.58 is: 430,039.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,271.40 : 781,454.65 = 311,622.58 : x
  2. Step 2: Convert to fraction form
    566,271.40/781,454.65 = 311,622.58/x
  3. Step 3: Cross multiply
    566,271.40x = 781,454.65 × 311,622.58
  4. Step 4: Simplify right side
    566,271.40x = 243,518,917,765.91
  5. Step 5: Solve for x
    x = 243,518,917,765.91/566,271.40
  6. Step 6: Final answer
    x = 430,039.24

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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.