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Finding the Fourth Proportional to 707,482.46, 976,276.52 and 401,565.06

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Solution

The fourth proportional to 707,482.46, 976,276.52 and 401,565.06 is: 554,131.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,482.46 : 976,276.52 = 401,565.06 : x
  2. Step 2: Convert to fraction form
    707,482.46/976,276.52 = 401,565.06/x
  3. Step 3: Cross multiply
    707,482.46x = 976,276.52 × 401,565.06
  4. Step 4: Simplify right side
    707,482.46x = 392,038,539,330.39
  5. Step 5: Solve for x
    x = 392,038,539,330.39/707,482.46
  6. Step 6: Final answer
    x = 554,131.81

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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.