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Finding the Fourth Proportional to 613,547.33, 920,363.04 and 208,574.73

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Solution

The fourth proportional to 613,547.33, 920,363.04 and 208,574.73 is: 312,876.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,547.33 : 920,363.04 = 208,574.73 : x
  2. Step 2: Convert to fraction form
    613,547.33/920,363.04 = 208,574.73/x
  3. Step 3: Cross multiply
    613,547.33x = 920,363.04 × 208,574.73
  4. Step 4: Simplify right side
    613,547.33x = 191,964,472,569.98
  5. Step 5: Solve for x
    x = 191,964,472,569.98/613,547.33
  6. Step 6: Final answer
    x = 312,876.39

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1.5x scale

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.