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Finding the Fourth Proportional to 660,222.32, 911,107.71 and 358,416.32

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Solution

The fourth proportional to 660,222.32, 911,107.71 and 358,416.32 is: 494,615.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,222.32 : 911,107.71 = 358,416.32 : x
  2. Step 2: Convert to fraction form
    660,222.32/911,107.71 = 358,416.32/x
  3. Step 3: Cross multiply
    660,222.32x = 911,107.71 × 358,416.32
  4. Step 4: Simplify right side
    660,222.32x = 326,555,872,541.83
  5. Step 5: Solve for x
    x = 326,555,872,541.83/660,222.32
  6. Step 6: Final answer
    x = 494,615.01

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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.