Home / 745,545.51-1,028,803.82-439,607.07

Finding the Fourth Proportional to 745,545.51, 1,028,803.82 and 439,607.07

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Solution

The fourth proportional to 745,545.51, 1,028,803.82 and 439,607.07 is: 606,628.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,545.51 : 1,028,803.82 = 439,607.07 : x
  2. Step 2: Convert to fraction form
    745,545.51/1,028,803.82 = 439,607.07/x
  3. Step 3: Cross multiply
    745,545.51x = 1,028,803.82 × 439,607.07
  4. Step 4: Simplify right side
    745,545.51x = 452,269,430,716.97
  5. Step 5: Solve for x
    x = 452,269,430,716.97/745,545.51
  6. Step 6: Final answer
    x = 606,628.87

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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.