Home / 766,510.92-1,057,817.76-426,979.32

Finding the Fourth Proportional to 766,510.92, 1,057,817.76 and 426,979.32

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Solution

The fourth proportional to 766,510.92, 1,057,817.76 and 426,979.32 is: 589,249.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,510.92 : 1,057,817.76 = 426,979.32 : x
  2. Step 2: Convert to fraction form
    766,510.92/1,057,817.76 = 426,979.32/x
  3. Step 3: Cross multiply
    766,510.92x = 1,057,817.76 × 426,979.32
  4. Step 4: Simplify right side
    766,510.92x = 451,666,307,848.72
  5. Step 5: Solve for x
    x = 451,666,307,848.72/766,510.92
  6. Step 6: Final answer
    x = 589,249.67

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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.