Home / 2,087,784.35-3,130,908.36-721,210.40

Finding the Fourth Proportional to 2,087,784.35, 3,130,908.36 and 721,210.40

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Solution

The fourth proportional to 2,087,784.35, 3,130,908.36 and 721,210.40 is: 1,081,550.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,087,784.35 : 3,130,908.36 = 721,210.40 : x
  2. Step 2: Convert to fraction form
    2,087,784.35/3,130,908.36 = 721,210.40/x
  3. Step 3: Cross multiply
    2,087,784.35x = 3,130,908.36 × 721,210.40
  4. Step 4: Simplify right side
    2,087,784.35x = 2,258,043,655,024.40
  5. Step 5: Solve for x
    x = 2,258,043,655,024.40/2,087,784.35
  6. Step 6: Final answer
    x = 1,081,550.24

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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.