Home / 540,721.80-811,082.70-470,737.80

Finding the Fourth Proportional to 540,721.80, 811,082.70 and 470,737.80

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Solution

The fourth proportional to 540,721.80, 811,082.70 and 470,737.80 is: 706,106.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,721.80 : 811,082.70 = 470,737.80 : x
  2. Step 2: Convert to fraction form
    540,721.80/811,082.70 = 470,737.80/x
  3. Step 3: Cross multiply
    540,721.80x = 811,082.70 × 470,737.80
  4. Step 4: Simplify right side
    540,721.80x = 381,807,285,816.06
  5. Step 5: Solve for x
    x = 381,807,285,816.06/540,721.80
  6. Step 6: Final answer
    x = 706,106.70

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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.