Home / 722,547.70-1,083,821.55-455,442.10

Finding the Fourth Proportional to 722,547.70, 1,083,821.55 and 455,442.10

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Solution

The fourth proportional to 722,547.70, 1,083,821.55 and 455,442.10 is: 683,163.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,547.70 : 1,083,821.55 = 455,442.10 : x
  2. Step 2: Convert to fraction form
    722,547.70/1,083,821.55 = 455,442.10/x
  3. Step 3: Cross multiply
    722,547.70x = 1,083,821.55 × 455,442.10
  4. Step 4: Simplify right side
    722,547.70x = 493,617,962,757.26
  5. Step 5: Solve for x
    x = 493,617,962,757.26/722,547.70
  6. Step 6: Final answer
    x = 683,163.15

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1.5x scale

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.