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Finding the Fourth Proportional to 472,615.20, 709,441.20 and 295,322.40

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Solution

The fourth proportional to 472,615.20, 709,441.20 and 295,322.40 is: 443,307.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,615.20 : 709,441.20 = 295,322.40 : x
  2. Step 2: Convert to fraction form
    472,615.20/709,441.20 = 295,322.40/x
  3. Step 3: Cross multiply
    472,615.20x = 709,441.20 × 295,322.40
  4. Step 4: Simplify right side
    472,615.20x = 209,513,877,842.88
  5. Step 5: Solve for x
    x = 209,513,877,842.88/472,615.20
  6. Step 6: Final answer
    x = 443,307.53

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1.5x scale

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.