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Finding the Fourth Proportional to 842,885.60, 1,264,328.40 and 842,885.60

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Solution

The fourth proportional to 842,885.60, 1,264,328.40 and 842,885.60 is: 1,264,328.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,885.60 : 1,264,328.40 = 842,885.60 : x
  2. Step 2: Convert to fraction form
    842,885.60/1,264,328.40 = 842,885.60/x
  3. Step 3: Cross multiply
    842,885.60x = 1,264,328.40 × 842,885.60
  4. Step 4: Simplify right side
    842,885.60x = 1,065,684,202,031.04
  5. Step 5: Solve for x
    x = 1,065,684,202,031.04/842,885.60
  6. Step 6: Final answer
    x = 1,264,328.40

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1.5x scale

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.