Home / 498,050.40-687,342.06-283,210.50

Finding the Fourth Proportional to 498,050.40, 687,342.06 and 283,210.50

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Solution

The fourth proportional to 498,050.40, 687,342.06 and 283,210.50 is: 390,848.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,050.40 : 687,342.06 = 283,210.50 : x
  2. Step 2: Convert to fraction form
    498,050.40/687,342.06 = 283,210.50/x
  3. Step 3: Cross multiply
    498,050.40x = 687,342.06 × 283,210.50
  4. Step 4: Simplify right side
    498,050.40x = 194,662,488,483.63
  5. Step 5: Solve for x
    x = 194,662,488,483.63/498,050.40
  6. Step 6: Final answer
    x = 390,848.98

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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.