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Finding the Fourth Proportional to 611,615.31, 844,050.63 and 339,688.28

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Solution

The fourth proportional to 611,615.31, 844,050.63 and 339,688.28 is: 468,781.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,615.31 : 844,050.63 = 339,688.28 : x
  2. Step 2: Convert to fraction form
    611,615.31/844,050.63 = 339,688.28/x
  3. Step 3: Cross multiply
    611,615.31x = 844,050.63 × 339,688.28
  4. Step 4: Simplify right side
    611,615.31x = 286,714,108,210.83
  5. Step 5: Solve for x
    x = 286,714,108,210.83/611,615.31
  6. Step 6: Final answer
    x = 468,781.77

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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.