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Finding the Fourth Proportional to 602,042.40, 830,809.04 and 330,112.58

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Solution

The fourth proportional to 602,042.40, 830,809.04 and 330,112.58 is: 455,550.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,042.40 : 830,809.04 = 330,112.58 : x
  2. Step 2: Convert to fraction form
    602,042.40/830,809.04 = 330,112.58/x
  3. Step 3: Cross multiply
    602,042.40x = 830,809.04 × 330,112.58
  4. Step 4: Simplify right side
    602,042.40x = 274,260,509,877.12
  5. Step 5: Solve for x
    x = 274,260,509,877.12/602,042.40
  6. Step 6: Final answer
    x = 455,550.16

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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.