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Finding the Fourth Proportional to 571,280.61, 855,985.95 and 346,709.88

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Solution

The fourth proportional to 571,280.61, 855,985.95 and 346,709.88 is: 519,497.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,280.61 : 855,985.95 = 346,709.88 : x
  2. Step 2: Convert to fraction form
    571,280.61/855,985.95 = 346,709.88/x
  3. Step 3: Cross multiply
    571,280.61x = 855,985.95 × 346,709.88
  4. Step 4: Simplify right side
    571,280.61x = 296,778,786,006.19
  5. Step 5: Solve for x
    x = 296,778,786,006.19/571,280.61
  6. Step 6: Final answer
    x = 519,497.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.