Home / 499,947.95-689,925.21-285,083.40

Finding the Fourth Proportional to 499,947.95, 689,925.21 and 285,083.40

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Solution

The fourth proportional to 499,947.95, 689,925.21 and 285,083.40 is: 393,413.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,947.95 : 689,925.21 = 285,083.40 : x
  2. Step 2: Convert to fraction form
    499,947.95/689,925.21 = 285,083.40/x
  3. Step 3: Cross multiply
    499,947.95x = 689,925.21 × 285,083.40
  4. Step 4: Simplify right side
    499,947.95x = 196,686,224,612.51
  5. Step 5: Solve for x
    x = 196,686,224,612.51/499,947.95
  6. Step 6: Final answer
    x = 393,413.41

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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.