Home / 989,793.84-1,484,568.72-421,403.52

Finding the Fourth Proportional to 989,793.84, 1,484,568.72 and 421,403.52

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Solution

The fourth proportional to 989,793.84, 1,484,568.72 and 421,403.52 is: 632,053.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,793.84 : 1,484,568.72 = 421,403.52 : x
  2. Step 2: Convert to fraction form
    989,793.84/1,484,568.72 = 421,403.52/x
  3. Step 3: Cross multiply
    989,793.84x = 1,484,568.72 × 421,403.52
  4. Step 4: Simplify right side
    989,793.84x = 625,602,484,289.89
  5. Step 5: Solve for x
    x = 625,602,484,289.89/989,793.84
  6. Step 6: Final answer
    x = 632,053.32

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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.