Home / 778,545.16-1,074,208.50-438,947.80

Finding the Fourth Proportional to 778,545.16, 1,074,208.50 and 438,947.80

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Solution

The fourth proportional to 778,545.16, 1,074,208.50 and 438,947.80 is: 605,644.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,545.16 : 1,074,208.50 = 438,947.80 : x
  2. Step 2: Convert to fraction form
    778,545.16/1,074,208.50 = 438,947.80/x
  3. Step 3: Cross multiply
    778,545.16x = 1,074,208.50 × 438,947.80
  4. Step 4: Simplify right side
    778,545.16x = 471,521,457,816.30
  5. Step 5: Solve for x
    x = 471,521,457,816.30/778,545.16
  6. Step 6: Final answer
    x = 605,644.32

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Double scale
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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.