Home / 1,686,298.78-2,528,537.35-874,671.20

Finding the Fourth Proportional to 1,686,298.78, 2,528,537.35 and 874,671.20

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Solution

The fourth proportional to 1,686,298.78, 2,528,537.35 and 874,671.20 is: 1,311,534.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,686,298.78 : 2,528,537.35 = 874,671.20 : x
  2. Step 2: Convert to fraction form
    1,686,298.78/2,528,537.35 = 874,671.20/x
  3. Step 3: Cross multiply
    1,686,298.78x = 2,528,537.35 × 874,671.20
  4. Step 4: Simplify right side
    1,686,298.78x = 2,211,638,798,169.32
  5. Step 5: Solve for x
    x = 2,211,638,798,169.32/1,686,298.78
  6. Step 6: Final answer
    x = 1,311,534.36

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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.