Home / 1,621,289.79-2,432,061.05-947,441.07

Finding the Fourth Proportional to 1,621,289.79, 2,432,061.05 and 947,441.07

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Solution

The fourth proportional to 1,621,289.79, 2,432,061.05 and 947,441.07 is: 1,421,235.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,621,289.79 : 2,432,061.05 = 947,441.07 : x
  2. Step 2: Convert to fraction form
    1,621,289.79/2,432,061.05 = 947,441.07/x
  3. Step 3: Cross multiply
    1,621,289.79x = 2,432,061.05 × 947,441.07
  4. Step 4: Simplify right side
    1,621,289.79x = 2,304,234,518,780.12
  5. Step 5: Solve for x
    x = 2,304,234,518,780.12/1,621,289.79
  6. Step 6: Final answer
    x = 1,421,235.45

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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.