Home / 607,621.76-911,561.88-208,155.32

Finding the Fourth Proportional to 607,621.76, 911,561.88 and 208,155.32

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Solution

The fourth proportional to 607,621.76, 911,561.88 and 208,155.32 is: 312,277.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,621.76 : 911,561.88 = 208,155.32 : x
  2. Step 2: Convert to fraction form
    607,621.76/911,561.88 = 208,155.32/x
  3. Step 3: Cross multiply
    607,621.76x = 911,561.88 × 208,155.32
  4. Step 4: Simplify right side
    607,621.76x = 189,746,454,831.20
  5. Step 5: Solve for x
    x = 189,746,454,831.20/607,621.76
  6. Step 6: Final answer
    x = 312,277.25

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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.