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Finding the Fourth Proportional to 665,832.50, 918,852.10 and 364,026.50

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Solution

The fourth proportional to 665,832.50, 918,852.10 and 364,026.50 is: 502,358.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,832.50 : 918,852.10 = 364,026.50 : x
  2. Step 2: Convert to fraction form
    665,832.50/918,852.10 = 364,026.50/x
  3. Step 3: Cross multiply
    665,832.50x = 918,852.10 × 364,026.50
  4. Step 4: Simplify right side
    665,832.50x = 334,486,513,980.65
  5. Step 5: Solve for x
    x = 334,486,513,980.65/665,832.50
  6. Step 6: Final answer
    x = 502,358.35

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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.