Home / 1,982,981.76-2,973,941.28-860,784

Finding the Fourth Proportional to 1,982,981.76, 2,973,941.28 and 860,784

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Solution

The fourth proportional to 1,982,981.76, 2,973,941.28 and 860,784 is: 1,290,945.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,982,981.76 : 2,973,941.28 = 860,784 : x
  2. Step 2: Convert to fraction form
    1,982,981.76/2,973,941.28 = 860,784/x
  3. Step 3: Cross multiply
    1,982,981.76x = 2,973,941.28 × 860,784
  4. Step 4: Simplify right side
    1,982,981.76x = 2,559,921,070,763.52
  5. Step 5: Solve for x
    x = 2,559,921,070,763.52/1,982,981.76
  6. Step 6: Final answer
    x = 1,290,945.34

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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.