Home / 876,795.15-1,209,855.92-489,563.31

Finding the Fourth Proportional to 876,795.15, 1,209,855.92 and 489,563.31

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Solution

The fourth proportional to 876,795.15, 1,209,855.92 and 489,563.31 is: 675,529.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,795.15 : 1,209,855.92 = 489,563.31 : x
  2. Step 2: Convert to fraction form
    876,795.15/1,209,855.92 = 489,563.31/x
  3. Step 3: Cross multiply
    876,795.15x = 1,209,855.92 × 489,563.31
  4. Step 4: Simplify right side
    876,795.15x = 592,301,066,370.48
  5. Step 5: Solve for x
    x = 592,301,066,370.48/876,795.15
  6. Step 6: Final answer
    x = 675,529.59

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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.