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Finding the Fourth Proportional to 707,396.42, 976,341.58 and 401,501.43

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Solution

The fourth proportional to 707,396.42, 976,341.58 and 401,501.43 is: 554,148.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,396.42 : 976,341.58 = 401,501.43 : x
  2. Step 2: Convert to fraction form
    707,396.42/976,341.58 = 401,501.43/x
  3. Step 3: Cross multiply
    707,396.42x = 976,341.58 × 401,501.43
  4. Step 4: Simplify right side
    707,396.42x = 392,002,539,534.71
  5. Step 5: Solve for x
    x = 392,002,539,534.71/707,396.42
  6. Step 6: Final answer
    x = 554,148.32

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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.