Home / 824,485.80-1,235,744.55-424,920.90

Finding the Fourth Proportional to 824,485.80, 1,235,744.55 and 424,920.90

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Solution

The fourth proportional to 824,485.80, 1,235,744.55 and 424,920.90 is: 636,874.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    824,485.80 : 1,235,744.55 = 424,920.90 : x
  2. Step 2: Convert to fraction form
    824,485.80/1,235,744.55 = 424,920.90/x
  3. Step 3: Cross multiply
    824,485.80x = 1,235,744.55 × 424,920.90
  4. Step 4: Simplify right side
    824,485.80x = 525,093,686,356.10
  5. Step 5: Solve for x
    x = 525,093,686,356.10/824,485.80
  6. Step 6: Final answer
    x = 636,874.14

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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.