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Finding the Fourth Proportional to 571,506.32, 788,687.63 and 313,406.84

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Solution

The fourth proportional to 571,506.32, 788,687.63 and 313,406.84 is: 432,506.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,506.32 : 788,687.63 = 313,406.84 : x
  2. Step 2: Convert to fraction form
    571,506.32/788,687.63 = 313,406.84/x
  3. Step 3: Cross multiply
    571,506.32x = 788,687.63 × 313,406.84
  4. Step 4: Simplify right side
    571,506.32x = 247,180,092,354.92
  5. Step 5: Solve for x
    x = 247,180,092,354.92/571,506.32
  6. Step 6: Final answer
    x = 432,506.32

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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.