Home / 871,032.30-1,201,993.47-489,075.18

Finding the Fourth Proportional to 871,032.30, 1,201,993.47 and 489,075.18

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Solution

The fourth proportional to 871,032.30, 1,201,993.47 and 489,075.18 is: 674,906.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,032.30 : 1,201,993.47 = 489,075.18 : x
  2. Step 2: Convert to fraction form
    871,032.30/1,201,993.47 = 489,075.18/x
  3. Step 3: Cross multiply
    871,032.30x = 1,201,993.47 × 489,075.18
  4. Step 4: Simplify right side
    871,032.30x = 587,865,172,699.08
  5. Step 5: Solve for x
    x = 587,865,172,699.08/871,032.30
  6. Step 6: Final answer
    x = 674,906.28

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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.