Home / 1,345,947-2,018,914-1,278,671.64

Finding the Fourth Proportional to 1,345,947, 2,018,914 and 1,278,671.64

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Solution

The fourth proportional to 1,345,947, 2,018,914 and 1,278,671.64 is: 1,918,001.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345,947 : 2,018,914 = 1,278,671.64 : x
  2. Step 2: Convert to fraction form
    1,345,947/2,018,914 = 1,278,671.64/x
  3. Step 3: Cross multiply
    1,345,947x = 2,018,914 × 1,278,671.64
  4. Step 4: Simplify right side
    1,345,947x = 2,581,528,075,398.96
  5. Step 5: Solve for x
    x = 2,581,528,075,398.96/1,345,947
  6. Step 6: Final answer
    x = 1,918,001.28

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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.