Home / 643,577.32-888,094.02-357,079.24

Finding the Fourth Proportional to 643,577.32, 888,094.02 and 357,079.24

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Solution

The fourth proportional to 643,577.32, 888,094.02 and 357,079.24 is: 492,745.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,577.32 : 888,094.02 = 357,079.24 : x
  2. Step 2: Convert to fraction form
    643,577.32/888,094.02 = 357,079.24/x
  3. Step 3: Cross multiply
    643,577.32x = 888,094.02 × 357,079.24
  4. Step 4: Simplify right side
    643,577.32x = 317,119,937,710.15
  5. Step 5: Solve for x
    x = 317,119,937,710.15/643,577.32
  6. Step 6: Final answer
    x = 492,745.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.