Home / 871,885.60-1,307,828.40-451,290.40

Finding the Fourth Proportional to 871,885.60, 1,307,828.40 and 451,290.40

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Solution

The fourth proportional to 871,885.60, 1,307,828.40 and 451,290.40 is: 676,935.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,885.60 : 1,307,828.40 = 451,290.40 : x
  2. Step 2: Convert to fraction form
    871,885.60/1,307,828.40 = 451,290.40/x
  3. Step 3: Cross multiply
    871,885.60x = 1,307,828.40 × 451,290.40
  4. Step 4: Simplify right side
    871,885.60x = 590,210,401,767.36
  5. Step 5: Solve for x
    x = 590,210,401,767.36/871,885.60
  6. Step 6: Final answer
    x = 676,935.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.