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Finding the Fourth Proportional to 768,873.84, 1,061,041.68 and 424,733.46

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Solution

The fourth proportional to 768,873.84, 1,061,041.68 and 424,733.46 is: 586,129.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,873.84 : 1,061,041.68 = 424,733.46 : x
  2. Step 2: Convert to fraction form
    768,873.84/1,061,041.68 = 424,733.46/x
  3. Step 3: Cross multiply
    768,873.84x = 1,061,041.68 × 424,733.46
  4. Step 4: Simplify right side
    768,873.84x = 450,659,903,950.61
  5. Step 5: Solve for x
    x = 450,659,903,950.61/768,873.84
  6. Step 6: Final answer
    x = 586,129.84

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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.