Home / 1,051,567.90-1,577,351.85-420,934.30

Finding the Fourth Proportional to 1,051,567.90, 1,577,351.85 and 420,934.30

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Solution

The fourth proportional to 1,051,567.90, 1,577,351.85 and 420,934.30 is: 631,401.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,051,567.90 : 1,577,351.85 = 420,934.30 : x
  2. Step 2: Convert to fraction form
    1,051,567.90/1,577,351.85 = 420,934.30/x
  3. Step 3: Cross multiply
    1,051,567.90x = 1,577,351.85 × 420,934.30
  4. Step 4: Simplify right side
    1,051,567.90x = 663,961,496,833.46
  5. Step 5: Solve for x
    x = 663,961,496,833.46/1,051,567.90
  6. Step 6: Final answer
    x = 631,401.45

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1.5x scale

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.