Home / 871,374.76-1,202,501.94-489,401.58

Finding the Fourth Proportional to 871,374.76, 1,202,501.94 and 489,401.58

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Solution

The fourth proportional to 871,374.76, 1,202,501.94 and 489,401.58 is: 675,376.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,374.76 : 1,202,501.94 = 489,401.58 : x
  2. Step 2: Convert to fraction form
    871,374.76/1,202,501.94 = 489,401.58/x
  3. Step 3: Cross multiply
    871,374.76x = 1,202,501.94 × 489,401.58
  4. Step 4: Simplify right side
    871,374.76x = 588,506,349,389.07
  5. Step 5: Solve for x
    x = 588,506,349,389.07/871,374.76
  6. Step 6: Final answer
    x = 675,376.86

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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.