Home / 1,928,815.13-2,887,547.06-1,287,528.23

Finding the Fourth Proportional to 1,928,815.13, 2,887,547.06 and 1,287,528.23

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Solution

The fourth proportional to 1,928,815.13, 2,887,547.06 and 1,287,528.23 is: 1,927,503.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,928,815.13 : 2,887,547.06 = 1,287,528.23 : x
  2. Step 2: Convert to fraction form
    1,928,815.13/2,887,547.06 = 1,287,528.23/x
  3. Step 3: Cross multiply
    1,928,815.13x = 2,887,547.06 × 1,287,528.23
  4. Step 4: Simplify right side
    1,928,815.13x = 3,717,798,334,328.13
  5. Step 5: Solve for x
    x = 3,717,798,334,328.13/1,928,815.13
  6. Step 6: Final answer
    x = 1,927,503.72

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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.