Home / 787,779.40-1,182,252.30-521,451.40

Finding the Fourth Proportional to 787,779.40, 1,182,252.30 and 521,451.40

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Solution

The fourth proportional to 787,779.40, 1,182,252.30 and 521,451.40 is: 782,563.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,779.40 : 1,182,252.30 = 521,451.40 : x
  2. Step 2: Convert to fraction form
    787,779.40/1,182,252.30 = 521,451.40/x
  3. Step 3: Cross multiply
    787,779.40x = 1,182,252.30 × 521,451.40
  4. Step 4: Simplify right side
    787,779.40x = 616,487,116,988.22
  5. Step 5: Solve for x
    x = 616,487,116,988.22/787,779.40
  6. Step 6: Final answer
    x = 782,563.14

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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.