Home / 918,989.51-1,377,462.71-693,619.16

Finding the Fourth Proportional to 918,989.51, 1,377,462.71 and 693,619.16

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Solution

The fourth proportional to 918,989.51, 1,377,462.71 and 693,619.16 is: 1,039,657.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,989.51 : 1,377,462.71 = 693,619.16 : x
  2. Step 2: Convert to fraction form
    918,989.51/1,377,462.71 = 693,619.16/x
  3. Step 3: Cross multiply
    918,989.51x = 1,377,462.71 × 693,619.16
  4. Step 4: Simplify right side
    918,989.51x = 955,434,517,486.11
  5. Step 5: Solve for x
    x = 955,434,517,486.11/918,989.51
  6. Step 6: Final answer
    x = 1,039,657.70

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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.