Home / 1,224,122.80-1,689,283-672,851.20

Finding the Fourth Proportional to 1,224,122.80, 1,689,283 and 672,851.20

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Solution

The fourth proportional to 1,224,122.80, 1,689,283 and 672,851.20 is: 928,531.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,224,122.80 : 1,689,283 = 672,851.20 : x
  2. Step 2: Convert to fraction form
    1,224,122.80/1,689,283 = 672,851.20/x
  3. Step 3: Cross multiply
    1,224,122.80x = 1,689,283 × 672,851.20
  4. Step 4: Simplify right side
    1,224,122.80x = 1,136,636,093,689.60
  5. Step 5: Solve for x
    x = 1,136,636,093,689.60/1,224,122.80
  6. Step 6: Final answer
    x = 928,531.10

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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.