Home / 487,273.41-672,438.83-272,413.49

Finding the Fourth Proportional to 487,273.41, 672,438.83 and 272,413.49

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Solution

The fourth proportional to 487,273.41, 672,438.83 and 272,413.49 is: 375,931.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,273.41 : 672,438.83 = 272,413.49 : x
  2. Step 2: Convert to fraction form
    487,273.41/672,438.83 = 272,413.49/x
  3. Step 3: Cross multiply
    487,273.41x = 672,438.83 × 272,413.49
  4. Step 4: Simplify right side
    487,273.41x = 183,181,403,767.56
  5. Step 5: Solve for x
    x = 183,181,403,767.56/487,273.41
  6. Step 6: Final answer
    x = 375,931.46

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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.