Home / 787,816.16-1,087,182-430,117.60

Finding the Fourth Proportional to 787,816.16, 1,087,182 and 430,117.60

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Solution

The fourth proportional to 787,816.16, 1,087,182 and 430,117.60 is: 593,559.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,816.16 : 1,087,182 = 430,117.60 : x
  2. Step 2: Convert to fraction form
    787,816.16/1,087,182 = 430,117.60/x
  3. Step 3: Cross multiply
    787,816.16x = 1,087,182 × 430,117.60
  4. Step 4: Simplify right side
    787,816.16x = 467,616,112,603.20
  5. Step 5: Solve for x
    x = 467,616,112,603.20/787,816.16
  6. Step 6: Final answer
    x = 593,559.94

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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.