Home / 826,647.48-1,140,637.68-487,069.56

Finding the Fourth Proportional to 826,647.48, 1,140,637.68 and 487,069.56

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Solution

The fourth proportional to 826,647.48, 1,140,637.68 and 487,069.56 is: 672,075.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,647.48 : 1,140,637.68 = 487,069.56 : x
  2. Step 2: Convert to fraction form
    826,647.48/1,140,637.68 = 487,069.56/x
  3. Step 3: Cross multiply
    826,647.48x = 1,140,637.68 × 487,069.56
  4. Step 4: Simplify right side
    826,647.48x = 555,569,892,917.02
  5. Step 5: Solve for x
    x = 555,569,892,917.02/826,647.48
  6. Step 6: Final answer
    x = 672,075.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.