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Finding the Fourth Proportional to 566,482.12, 781,745.22 and 311,833.24

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Solution

The fourth proportional to 566,482.12, 781,745.22 and 311,833.24 is: 430,329.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,482.12 : 781,745.22 = 311,833.24 : x
  2. Step 2: Convert to fraction form
    566,482.12/781,745.22 = 311,833.24/x
  3. Step 3: Cross multiply
    566,482.12x = 781,745.22 × 311,833.24
  4. Step 4: Simplify right side
    566,482.12x = 243,774,144,807.11
  5. Step 5: Solve for x
    x = 243,774,144,807.11/566,482.12
  6. Step 6: Final answer
    x = 430,329.81

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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.