Home / 679,821.67-938,160.16-369,727.15

Finding the Fourth Proportional to 679,821.67, 938,160.16 and 369,727.15

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Solution

The fourth proportional to 679,821.67, 938,160.16 and 369,727.15 is: 510,226.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,821.67 : 938,160.16 = 369,727.15 : x
  2. Step 2: Convert to fraction form
    679,821.67/938,160.16 = 369,727.15/x
  3. Step 3: Cross multiply
    679,821.67x = 938,160.16 × 369,727.15
  4. Step 4: Simplify right side
    679,821.67x = 346,863,277,509.54
  5. Step 5: Solve for x
    x = 346,863,277,509.54/679,821.67
  6. Step 6: Final answer
    x = 510,226.86

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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.