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Finding the Fourth Proportional to 579,721.70, 869,150.55 and 299,440.10

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Solution

The fourth proportional to 579,721.70, 869,150.55 and 299,440.10 is: 448,937.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,721.70 : 869,150.55 = 299,440.10 : x
  2. Step 2: Convert to fraction form
    579,721.70/869,150.55 = 299,440.10/x
  3. Step 3: Cross multiply
    579,721.70x = 869,150.55 × 299,440.10
  4. Step 4: Simplify right side
    579,721.70x = 260,258,527,607.06
  5. Step 5: Solve for x
    x = 260,258,527,607.06/579,721.70
  6. Step 6: Final answer
    x = 448,937.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.