Home / 677,545.20-1,016,317.80-425,602.80

Finding the Fourth Proportional to 677,545.20, 1,016,317.80 and 425,602.80

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Solution

The fourth proportional to 677,545.20, 1,016,317.80 and 425,602.80 is: 638,404.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,545.20 : 1,016,317.80 = 425,602.80 : x
  2. Step 2: Convert to fraction form
    677,545.20/1,016,317.80 = 425,602.80/x
  3. Step 3: Cross multiply
    677,545.20x = 1,016,317.80 × 425,602.80
  4. Step 4: Simplify right side
    677,545.20x = 432,547,701,369.84
  5. Step 5: Solve for x
    x = 432,547,701,369.84/677,545.20
  6. Step 6: Final answer
    x = 638,404.20

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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.