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Finding the Fourth Proportional to 671,677.65, 926,204.81 and 518,740.74

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Solution

The fourth proportional to 671,677.65, 926,204.81 and 518,740.74 is: 715,313.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,677.65 : 926,204.81 = 518,740.74 : x
  2. Step 2: Convert to fraction form
    671,677.65/926,204.81 = 518,740.74/x
  3. Step 3: Cross multiply
    671,677.65x = 926,204.81 × 518,740.74
  4. Step 4: Simplify right side
    671,677.65x = 480,460,165,937.26
  5. Step 5: Solve for x
    x = 480,460,165,937.26/671,677.65
  6. Step 6: Final answer
    x = 715,313.61

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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.