Home / 840,530.34-1,159,884.54-478,042.38

Finding the Fourth Proportional to 840,530.34, 1,159,884.54 and 478,042.38

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Solution

The fourth proportional to 840,530.34, 1,159,884.54 and 478,042.38 is: 659,671.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,530.34 : 1,159,884.54 = 478,042.38 : x
  2. Step 2: Convert to fraction form
    840,530.34/1,159,884.54 = 478,042.38/x
  3. Step 3: Cross multiply
    840,530.34x = 1,159,884.54 × 478,042.38
  4. Step 4: Simplify right side
    840,530.34x = 554,473,966,026.81
  5. Step 5: Solve for x
    x = 554,473,966,026.81/840,530.34
  6. Step 6: Final answer
    x = 659,671.57

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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.