Home / 662,345.10-913,984.13-375,865.19

Finding the Fourth Proportional to 662,345.10, 913,984.13 and 375,865.19

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Solution

The fourth proportional to 662,345.10, 913,984.13 and 375,865.19 is: 518,664.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,345.10 : 913,984.13 = 375,865.19 : x
  2. Step 2: Convert to fraction form
    662,345.10/913,984.13 = 375,865.19/x
  3. Step 3: Cross multiply
    662,345.10x = 913,984.13 × 375,865.19
  4. Step 4: Simplify right side
    662,345.10x = 343,534,814,848.92
  5. Step 5: Solve for x
    x = 343,534,814,848.92/662,345.10
  6. Step 6: Final answer
    x = 518,664.39

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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.