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Finding the Fourth Proportional to 535,479.69, 739,008.66 and 293,809.51

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Solution

The fourth proportional to 535,479.69, 739,008.66 and 293,809.51 is: 405,482.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,479.69 : 739,008.66 = 293,809.51 : x
  2. Step 2: Convert to fraction form
    535,479.69/739,008.66 = 293,809.51/x
  3. Step 3: Cross multiply
    535,479.69x = 739,008.66 × 293,809.51
  4. Step 4: Simplify right side
    535,479.69x = 217,127,774,305.90
  5. Step 5: Solve for x
    x = 217,127,774,305.90/535,479.69
  6. Step 6: Final answer
    x = 405,482.74

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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.