Home / 1,500,892.84-2,069,832.70-1,389,428.76

Finding the Fourth Proportional to 1,500,892.84, 2,069,832.70 and 1,389,428.76

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Solution

The fourth proportional to 1,500,892.84, 2,069,832.70 and 1,389,428.76 is: 1,916,116.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,500,892.84 : 2,069,832.70 = 1,389,428.76 : x
  2. Step 2: Convert to fraction form
    1,500,892.84/2,069,832.70 = 1,389,428.76/x
  3. Step 3: Cross multiply
    1,500,892.84x = 2,069,832.70 × 1,389,428.76
  4. Step 4: Simplify right side
    1,500,892.84x = 2,875,885,081,768.45
  5. Step 5: Solve for x
    x = 2,875,885,081,768.45/1,500,892.84
  6. Step 6: Final answer
    x = 1,916,116.20

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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.