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Finding the Fourth Proportional to 607,678.66, 838,630.19 and 335,740.72

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Solution

The fourth proportional to 607,678.66, 838,630.19 and 335,740.72 is: 463,340.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,678.66 : 838,630.19 = 335,740.72 : x
  2. Step 2: Convert to fraction form
    607,678.66/838,630.19 = 335,740.72/x
  3. Step 3: Cross multiply
    607,678.66x = 838,630.19 × 335,740.72
  4. Step 4: Simplify right side
    607,678.66x = 281,562,303,804.34
  5. Step 5: Solve for x
    x = 281,562,303,804.34/607,678.66
  6. Step 6: Final answer
    x = 463,340.78

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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.