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Finding the Fourth Proportional to 630,974.40, 946,461.60 and 579,364.80

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Solution

The fourth proportional to 630,974.40, 946,461.60 and 579,364.80 is: 869,047.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,974.40 : 946,461.60 = 579,364.80 : x
  2. Step 2: Convert to fraction form
    630,974.40/946,461.60 = 579,364.80/x
  3. Step 3: Cross multiply
    630,974.40x = 946,461.60 × 579,364.80
  4. Step 4: Simplify right side
    630,974.40x = 548,346,535,591.68
  5. Step 5: Solve for x
    x = 548,346,535,591.68/630,974.40
  6. Step 6: Final answer
    x = 869,047.20

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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.