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Finding the Fourth Proportional to 665,894.52, 918,937.98 and 364,088.52

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Solution

The fourth proportional to 665,894.52, 918,937.98 and 364,088.52 is: 502,444.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,894.52 : 918,937.98 = 364,088.52 : x
  2. Step 2: Convert to fraction form
    665,894.52/918,937.98 = 364,088.52/x
  3. Step 3: Cross multiply
    665,894.52x = 918,937.98 × 364,088.52
  4. Step 4: Simplify right side
    665,894.52x = 334,574,769,109.99
  5. Step 5: Solve for x
    x = 334,574,769,109.99/665,894.52
  6. Step 6: Final answer
    x = 502,444.09

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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.