Home / 810,916.80-1,118,979.42-448,282.20

Finding the Fourth Proportional to 810,916.80, 1,118,979.42 and 448,282.20

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Solution

The fourth proportional to 810,916.80, 1,118,979.42 and 448,282.20 is: 618,582.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,916.80 : 1,118,979.42 = 448,282.20 : x
  2. Step 2: Convert to fraction form
    810,916.80/1,118,979.42 = 448,282.20/x
  3. Step 3: Cross multiply
    810,916.80x = 1,118,979.42 × 448,282.20
  4. Step 4: Simplify right side
    810,916.80x = 501,618,556,152.32
  5. Step 5: Solve for x
    x = 501,618,556,152.32/810,916.80
  6. Step 6: Final answer
    x = 618,582.02

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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.