Home / 668,503.29-1,003,061.12-289,539.93

Finding the Fourth Proportional to 668,503.29, 1,003,061.12 and 289,539.93

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Solution

The fourth proportional to 668,503.29, 1,003,061.12 and 289,539.93 is: 434,442.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,503.29 : 1,003,061.12 = 289,539.93 : x
  2. Step 2: Convert to fraction form
    668,503.29/1,003,061.12 = 289,539.93/x
  3. Step 3: Cross multiply
    668,503.29x = 1,003,061.12 × 289,539.93
  4. Step 4: Simplify right side
    668,503.29x = 290,426,246,470.52
  5. Step 5: Solve for x
    x = 290,426,246,470.52/668,503.29
  6. Step 6: Final answer
    x = 434,442.51

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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.