Home / 1,261,073.86-1,740,323.93-688,145.47

Finding the Fourth Proportional to 1,261,073.86, 1,740,323.93 and 688,145.47

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Solution

The fourth proportional to 1,261,073.86, 1,740,323.93 and 688,145.47 is: 949,663.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,073.86 : 1,740,323.93 = 688,145.47 : x
  2. Step 2: Convert to fraction form
    1,261,073.86/1,740,323.93 = 688,145.47/x
  3. Step 3: Cross multiply
    1,261,073.86x = 1,740,323.93 × 688,145.47
  4. Step 4: Simplify right side
    1,261,073.86x = 1,197,596,020,970.56
  5. Step 5: Solve for x
    x = 1,197,596,020,970.56/1,261,073.86
  6. Step 6: Final answer
    x = 949,663.66

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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.