Home / 1,838,388.30-2,754,386.72-1,290,117.95

Finding the Fourth Proportional to 1,838,388.30, 2,754,386.72 and 1,290,117.95

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Solution

The fourth proportional to 1,838,388.30, 2,754,386.72 and 1,290,117.95 is: 1,932,934.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,838,388.30 : 2,754,386.72 = 1,290,117.95 : x
  2. Step 2: Convert to fraction form
    1,838,388.30/2,754,386.72 = 1,290,117.95/x
  3. Step 3: Cross multiply
    1,838,388.30x = 2,754,386.72 × 1,290,117.95
  4. Step 4: Simplify right side
    1,838,388.30x = 3,553,483,742,263.03
  5. Step 5: Solve for x
    x = 3,553,483,742,263.03/1,838,388.30
  6. Step 6: Final answer
    x = 1,932,934.27

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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.