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Finding the Fourth Proportional to 660,953.84, 912,122.04 and 359,147.84

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Solution

The fourth proportional to 660,953.84, 912,122.04 and 359,147.84 is: 495,627.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,953.84 : 912,122.04 = 359,147.84 : x
  2. Step 2: Convert to fraction form
    660,953.84/912,122.04 = 359,147.84/x
  3. Step 3: Cross multiply
    660,953.84x = 912,122.04 × 359,147.84
  4. Step 4: Simplify right side
    660,953.84x = 327,586,660,482.39
  5. Step 5: Solve for x
    x = 327,586,660,482.39/660,953.84
  6. Step 6: Final answer
    x = 495,627.14

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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.