Home / 684,411.09-1,026,761.18-257,937.89

Finding the Fourth Proportional to 684,411.09, 1,026,761.18 and 257,937.89

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Solution

The fourth proportional to 684,411.09, 1,026,761.18 and 257,937.89 is: 386,961.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,411.09 : 1,026,761.18 = 257,937.89 : x
  2. Step 2: Convert to fraction form
    684,411.09/1,026,761.18 = 257,937.89/x
  3. Step 3: Cross multiply
    684,411.09x = 1,026,761.18 × 257,937.89
  4. Step 4: Simplify right side
    684,411.09x = 264,840,612,947.96
  5. Step 5: Solve for x
    x = 264,840,612,947.96/684,411.09
  6. Step 6: Final answer
    x = 386,961.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.