Home / 1,872,130.20-2,809,404.90-1,031,285.40

Finding the Fourth Proportional to 1,872,130.20, 2,809,404.90 and 1,031,285.40

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Solution

The fourth proportional to 1,872,130.20, 2,809,404.90 and 1,031,285.40 is: 1,547,594.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,872,130.20 : 2,809,404.90 = 1,031,285.40 : x
  2. Step 2: Convert to fraction form
    1,872,130.20/2,809,404.90 = 1,031,285.40/x
  3. Step 3: Cross multiply
    1,872,130.20x = 2,809,404.90 × 1,031,285.40
  4. Step 4: Simplify right side
    1,872,130.20x = 2,897,298,256,058.46
  5. Step 5: Solve for x
    x = 2,897,298,256,058.46/1,872,130.20
  6. Step 6: Final answer
    x = 1,547,594.42

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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.