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Finding the Fourth Proportional to 652,862.40, 979,293.60 and 605,623.20

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Solution

The fourth proportional to 652,862.40, 979,293.60 and 605,623.20 is: 908,434.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,862.40 : 979,293.60 = 605,623.20 : x
  2. Step 2: Convert to fraction form
    652,862.40/979,293.60 = 605,623.20/x
  3. Step 3: Cross multiply
    652,862.40x = 979,293.60 × 605,623.20
  4. Step 4: Simplify right side
    652,862.40x = 593,082,923,771.52
  5. Step 5: Solve for x
    x = 593,082,923,771.52/652,862.40
  6. Step 6: Final answer
    x = 908,434.80

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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.