Home / 1,915,389.64-2,643,189.06-1,055,929.96

Finding the Fourth Proportional to 1,915,389.64, 2,643,189.06 and 1,055,929.96

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Solution

The fourth proportional to 1,915,389.64, 2,643,189.06 and 1,055,929.96 is: 1,457,156.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,915,389.64 : 2,643,189.06 = 1,055,929.96 : x
  2. Step 2: Convert to fraction form
    1,915,389.64/2,643,189.06 = 1,055,929.96/x
  3. Step 3: Cross multiply
    1,915,389.64x = 2,643,189.06 × 1,055,929.96
  4. Step 4: Simplify right side
    1,915,389.64x = 2,791,022,518,398.24
  5. Step 5: Solve for x
    x = 2,791,022,518,398.24/1,915,389.64
  6. Step 6: Final answer
    x = 1,457,156.53

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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.