Home / 648,748.80-973,123.20-612,007.20

Finding the Fourth Proportional to 648,748.80, 973,123.20 and 612,007.20

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Solution

The fourth proportional to 648,748.80, 973,123.20 and 612,007.20 is: 918,010.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,748.80 : 973,123.20 = 612,007.20 : x
  2. Step 2: Convert to fraction form
    648,748.80/973,123.20 = 612,007.20/x
  3. Step 3: Cross multiply
    648,748.80x = 973,123.20 × 612,007.20
  4. Step 4: Simplify right side
    648,748.80x = 595,558,404,887.04
  5. Step 5: Solve for x
    x = 595,558,404,887.04/648,748.80
  6. Step 6: Final answer
    x = 918,010.80

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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.