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Finding the Fourth Proportional to 475,648.09, 656,394.15 and 260,783.58

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Solution

The fourth proportional to 475,648.09, 656,394.15 and 260,783.58 is: 359,881.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,648.09 : 656,394.15 = 260,783.58 : x
  2. Step 2: Convert to fraction form
    475,648.09/656,394.15 = 260,783.58/x
  3. Step 3: Cross multiply
    475,648.09x = 656,394.15 × 260,783.58
  4. Step 4: Simplify right side
    475,648.09x = 171,176,816,328.06
  5. Step 5: Solve for x
    x = 171,176,816,328.06/475,648.09
  6. Step 6: Final answer
    x = 359,881.22

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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.