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Finding the Fourth Proportional to 606,341.70, 909,512.55 and 417,384.90

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Solution

The fourth proportional to 606,341.70, 909,512.55 and 417,384.90 is: 626,077.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,341.70 : 909,512.55 = 417,384.90 : x
  2. Step 2: Convert to fraction form
    606,341.70/909,512.55 = 417,384.90/x
  3. Step 3: Cross multiply
    606,341.70x = 909,512.55 × 417,384.90
  4. Step 4: Simplify right side
    606,341.70x = 379,616,804,730.50
  5. Step 5: Solve for x
    x = 379,616,804,730.50/606,341.70
  6. Step 6: Final answer
    x = 626,077.35

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Similar ratio
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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.