Home / 1,328,009.10-1,989,637.65-807,737.10

Finding the Fourth Proportional to 1,328,009.10, 1,989,637.65 and 807,737.10

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Solution

The fourth proportional to 1,328,009.10, 1,989,637.65 and 807,737.10 is: 1,210,160.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,009.10 : 1,989,637.65 = 807,737.10 : x
  2. Step 2: Convert to fraction form
    1,328,009.10/1,989,637.65 = 807,737.10/x
  3. Step 3: Cross multiply
    1,328,009.10x = 1,989,637.65 × 807,737.10
  4. Step 4: Simplify right side
    1,328,009.10x = 1,607,104,145,461.82
  5. Step 5: Solve for x
    x = 1,607,104,145,461.82/1,328,009.10
  6. Step 6: Final answer
    x = 1,210,160.49

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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.