Home / 549,210.48-822,328.92-388,626.36

Finding the Fourth Proportional to 549,210.48, 822,328.92 and 388,626.36

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Solution

The fourth proportional to 549,210.48, 822,328.92 and 388,626.36 is: 581,887.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,210.48 : 822,328.92 = 388,626.36 : x
  2. Step 2: Convert to fraction form
    549,210.48/822,328.92 = 388,626.36/x
  3. Step 3: Cross multiply
    549,210.48x = 822,328.92 × 388,626.36
  4. Step 4: Simplify right side
    549,210.48x = 319,578,694,902.33
  5. Step 5: Solve for x
    x = 319,578,694,902.33/549,210.48
  6. Step 6: Final answer
    x = 581,887.47

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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.