Home / 498,030.14-687,929.82-402,895.64

Finding the Fourth Proportional to 498,030.14, 687,929.82 and 402,895.64

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Solution

The fourth proportional to 498,030.14, 687,929.82 and 402,895.64 is: 556,520.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,030.14 : 687,929.82 = 402,895.64 : x
  2. Step 2: Convert to fraction form
    498,030.14/687,929.82 = 402,895.64/x
  3. Step 3: Cross multiply
    498,030.14x = 687,929.82 × 402,895.64
  4. Step 4: Simplify right side
    498,030.14x = 277,163,925,103.99
  5. Step 5: Solve for x
    x = 277,163,925,103.99/498,030.14
  6. Step 6: Final answer
    x = 556,520.38

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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.