Home / 808,547.20-1,212,383.40-335,280.40

Finding the Fourth Proportional to 808,547.20, 1,212,383.40 and 335,280.40

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Solution

The fourth proportional to 808,547.20, 1,212,383.40 and 335,280.40 is: 502,739.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,547.20 : 1,212,383.40 = 335,280.40 : x
  2. Step 2: Convert to fraction form
    808,547.20/1,212,383.40 = 335,280.40/x
  3. Step 3: Cross multiply
    808,547.20x = 1,212,383.40 × 335,280.40
  4. Step 4: Simplify right side
    808,547.20x = 406,488,391,305.36
  5. Step 5: Solve for x
    x = 406,488,391,305.36/808,547.20
  6. Step 6: Final answer
    x = 502,739.22

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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.