Home / 871,313.60-1,306,970.40-572,715.20

Finding the Fourth Proportional to 871,313.60, 1,306,970.40 and 572,715.20

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Solution

The fourth proportional to 871,313.60, 1,306,970.40 and 572,715.20 is: 859,072.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,313.60 : 1,306,970.40 = 572,715.20 : x
  2. Step 2: Convert to fraction form
    871,313.60/1,306,970.40 = 572,715.20/x
  3. Step 3: Cross multiply
    871,313.60x = 1,306,970.40 × 572,715.20
  4. Step 4: Simplify right side
    871,313.60x = 748,521,814,030.08
  5. Step 5: Solve for x
    x = 748,521,814,030.08/871,313.60
  6. Step 6: Final answer
    x = 859,072.80

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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.