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Finding the Fourth Proportional to 702,956.07, 970,079.90 and 380,666.52

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Solution

The fourth proportional to 702,956.07, 970,079.90 and 380,666.52 is: 525,320.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,956.07 : 970,079.90 = 380,666.52 : x
  2. Step 2: Convert to fraction form
    702,956.07/970,079.90 = 380,666.52/x
  3. Step 3: Cross multiply
    702,956.07x = 970,079.90 × 380,666.52
  4. Step 4: Simplify right side
    702,956.07x = 369,276,937,751.62
  5. Step 5: Solve for x
    x = 369,276,937,751.62/702,956.07
  6. Step 6: Final answer
    x = 525,320.08

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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.