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Finding the Fourth Proportional to 610,124.08, 913,994.87 and 289,820.15

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Solution

The fourth proportional to 610,124.08, 913,994.87 and 289,820.15 is: 434,164.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,124.08 : 913,994.87 = 289,820.15 : x
  2. Step 2: Convert to fraction form
    610,124.08/913,994.87 = 289,820.15/x
  3. Step 3: Cross multiply
    610,124.08x = 913,994.87 × 289,820.15
  4. Step 4: Simplify right side
    610,124.08x = 264,894,130,322.63
  5. Step 5: Solve for x
    x = 264,894,130,322.63/610,124.08
  6. Step 6: Final answer
    x = 434,164.36

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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.