Home / 1,520,071.05-2,097,665.68-831,740.14

Finding the Fourth Proportional to 1,520,071.05, 2,097,665.68 and 831,740.14

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Solution

The fourth proportional to 1,520,071.05, 2,097,665.68 and 831,740.14 is: 1,147,783.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,520,071.05 : 2,097,665.68 = 831,740.14 : x
  2. Step 2: Convert to fraction form
    1,520,071.05/2,097,665.68 = 831,740.14/x
  3. Step 3: Cross multiply
    1,520,071.05x = 2,097,665.68 × 831,740.14
  4. Step 4: Simplify right side
    1,520,071.05x = 1,744,712,746,356.40
  5. Step 5: Solve for x
    x = 1,744,712,746,356.40/1,520,071.05
  6. Step 6: Final answer
    x = 1,147,783.68

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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.