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Finding the Fourth Proportional to 472,397.76, 651,910.95 and 302,730.30

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Solution

The fourth proportional to 472,397.76, 651,910.95 and 302,730.30 is: 417,769.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,397.76 : 651,910.95 = 302,730.30 : x
  2. Step 2: Convert to fraction form
    472,397.76/651,910.95 = 302,730.30/x
  3. Step 3: Cross multiply
    472,397.76x = 651,910.95 × 302,730.30
  4. Step 4: Simplify right side
    472,397.76x = 197,353,197,466.79
  5. Step 5: Solve for x
    x = 197,353,197,466.79/472,397.76
  6. Step 6: Final answer
    x = 417,769.12

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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.