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Finding the Fourth Proportional to 429,471.90, 592,735.86 and 309,011.94

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Solution

The fourth proportional to 429,471.90, 592,735.86 and 309,011.94 is: 426,482.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,471.90 : 592,735.86 = 309,011.94 : x
  2. Step 2: Convert to fraction form
    429,471.90/592,735.86 = 309,011.94/x
  3. Step 3: Cross multiply
    429,471.90x = 592,735.86 × 309,011.94
  4. Step 4: Simplify right side
    429,471.90x = 183,162,458,006.17
  5. Step 5: Solve for x
    x = 183,162,458,006.17/429,471.90
  6. Step 6: Final answer
    x = 426,482.99

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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.