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Finding the Fourth Proportional to 660,907.32, 912,057.66 and 359,101.32

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Solution

The fourth proportional to 660,907.32, 912,057.66 and 359,101.32 is: 495,562.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,907.32 : 912,057.66 = 359,101.32 : x
  2. Step 2: Convert to fraction form
    660,907.32/912,057.66 = 359,101.32/x
  3. Step 3: Cross multiply
    660,907.32x = 912,057.66 × 359,101.32
  4. Step 4: Simplify right side
    660,907.32x = 327,521,109,622.11
  5. Step 5: Solve for x
    x = 327,521,109,622.11/660,907.32
  6. Step 6: Final answer
    x = 495,562.84

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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.