Home / 2,118,990.76-2,924,172.80-1,152,145.40

Finding the Fourth Proportional to 2,118,990.76, 2,924,172.80 and 1,152,145.40

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Solution

The fourth proportional to 2,118,990.76, 2,924,172.80 and 1,152,145.40 is: 1,589,941.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,118,990.76 : 2,924,172.80 = 1,152,145.40 : x
  2. Step 2: Convert to fraction form
    2,118,990.76/2,924,172.80 = 1,152,145.40/x
  3. Step 3: Cross multiply
    2,118,990.76x = 2,924,172.80 × 1,152,145.40
  4. Step 4: Simplify right side
    2,118,990.76x = 3,369,072,219,943.53
  5. Step 5: Solve for x
    x = 3,369,072,219,943.53/2,118,990.76
  6. Step 6: Final answer
    x = 1,589,941.91

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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.