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Finding the Fourth Proportional to 569,351.28, 785,720.64 and 314,718.84

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Solution

The fourth proportional to 569,351.28, 785,720.64 and 314,718.84 is: 434,320.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,351.28 : 785,720.64 = 314,718.84 : x
  2. Step 2: Convert to fraction form
    569,351.28/785,720.64 = 314,718.84/x
  3. Step 3: Cross multiply
    569,351.28x = 785,720.64 × 314,718.84
  4. Step 4: Simplify right side
    569,351.28x = 247,281,088,384.86
  5. Step 5: Solve for x
    x = 247,281,088,384.86/569,351.28
  6. Step 6: Final answer
    x = 434,320.77

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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.