Home / 1,587,085.64-2,380,579.02-389,011.40

Finding the Fourth Proportional to 1,587,085.64, 2,380,579.02 and 389,011.40

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Solution

The fourth proportional to 1,587,085.64, 2,380,579.02 and 389,011.40 is: 583,504.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,587,085.64 : 2,380,579.02 = 389,011.40 : x
  2. Step 2: Convert to fraction form
    1,587,085.64/2,380,579.02 = 389,011.40/x
  3. Step 3: Cross multiply
    1,587,085.64x = 2,380,579.02 × 389,011.40
  4. Step 4: Simplify right side
    1,587,085.64x = 926,072,377,380.83
  5. Step 5: Solve for x
    x = 926,072,377,380.83/1,587,085.64
  6. Step 6: Final answer
    x = 583,504.98

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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.