Home / 871,421.32-1,202,674.16-489,448.08

Finding the Fourth Proportional to 871,421.32, 1,202,674.16 and 489,448.08

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Solution

The fourth proportional to 871,421.32, 1,202,674.16 and 489,448.08 is: 675,501.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,421.32 : 1,202,674.16 = 489,448.08 : x
  2. Step 2: Convert to fraction form
    871,421.32/1,202,674.16 = 489,448.08/x
  3. Step 3: Cross multiply
    871,421.32x = 1,202,674.16 × 489,448.08
  4. Step 4: Simplify right side
    871,421.32x = 588,646,558,477.61
  5. Step 5: Solve for x
    x = 588,646,558,477.61/871,421.32
  6. Step 6: Final answer
    x = 675,501.67

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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.