Home / 972,900.09-1,342,500.28-564,922.40

Finding the Fourth Proportional to 972,900.09, 1,342,500.28 and 564,922.40

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Solution

The fourth proportional to 972,900.09, 1,342,500.28 and 564,922.40 is: 779,533.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,900.09 : 1,342,500.28 = 564,922.40 : x
  2. Step 2: Convert to fraction form
    972,900.09/1,342,500.28 = 564,922.40/x
  3. Step 3: Cross multiply
    972,900.09x = 1,342,500.28 × 564,922.40
  4. Step 4: Simplify right side
    972,900.09x = 758,408,479,605.03
  5. Step 5: Solve for x
    x = 758,408,479,605.03/972,900.09
  6. Step 6: Final answer
    x = 779,533.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.