Home / 818,985.58-1,228,653.31-286,523.98

Finding the Fourth Proportional to 818,985.58, 1,228,653.31 and 286,523.98

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Solution

The fourth proportional to 818,985.58, 1,228,653.31 and 286,523.98 is: 429,847.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,985.58 : 1,228,653.31 = 286,523.98 : x
  2. Step 2: Convert to fraction form
    818,985.58/1,228,653.31 = 286,523.98/x
  3. Step 3: Cross multiply
    818,985.58x = 1,228,653.31 × 286,523.98
  4. Step 4: Simplify right side
    818,985.58x = 352,038,636,421.37
  5. Step 5: Solve for x
    x = 352,038,636,421.37/818,985.58
  6. Step 6: Final answer
    x = 429,847.17

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1.5x scale

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.