Home / 1,015,153.56-1,400,925.78-556,258.86

Finding the Fourth Proportional to 1,015,153.56, 1,400,925.78 and 556,258.86

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Solution

The fourth proportional to 1,015,153.56, 1,400,925.78 and 556,258.86 is: 767,644.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,015,153.56 : 1,400,925.78 = 556,258.86 : x
  2. Step 2: Convert to fraction form
    1,015,153.56/1,400,925.78 = 556,258.86/x
  3. Step 3: Cross multiply
    1,015,153.56x = 1,400,925.78 × 556,258.86
  4. Step 4: Simplify right side
    1,015,153.56x = 779,277,377,327.41
  5. Step 5: Solve for x
    x = 779,277,377,327.41/1,015,153.56
  6. Step 6: Final answer
    x = 767,644.83

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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.