Home / 677,637.30-1,016,384.67-278,320.26

Finding the Fourth Proportional to 677,637.30, 1,016,384.67 and 278,320.26

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Solution

The fourth proportional to 677,637.30, 1,016,384.67 and 278,320.26 is: 417,451.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,637.30 : 1,016,384.67 = 278,320.26 : x
  2. Step 2: Convert to fraction form
    677,637.30/1,016,384.67 = 278,320.26/x
  3. Step 3: Cross multiply
    677,637.30x = 1,016,384.67 × 278,320.26
  4. Step 4: Simplify right side
    677,637.30x = 282,880,445,614.41
  5. Step 5: Solve for x
    x = 282,880,445,614.41/677,637.30
  6. Step 6: Final answer
    x = 417,451.11

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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.