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Finding the Fourth Proportional to 707,480.93, 976,428.42 and 417,145.73

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Solution

The fourth proportional to 707,480.93, 976,428.42 and 417,145.73 is: 575,722.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,480.93 : 976,428.42 = 417,145.73 : x
  2. Step 2: Convert to fraction form
    707,480.93/976,428.42 = 417,145.73/x
  3. Step 3: Cross multiply
    707,480.93x = 976,428.42 × 417,145.73
  4. Step 4: Simplify right side
    707,480.93x = 407,312,946,053.65
  5. Step 5: Solve for x
    x = 407,312,946,053.65/707,480.93
  6. Step 6: Final answer
    x = 575,722.86

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1.5x scale

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.