Home / 815,730.30-1,223,595.45-514,580.40

Finding the Fourth Proportional to 815,730.30, 1,223,595.45 and 514,580.40

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Solution

The fourth proportional to 815,730.30, 1,223,595.45 and 514,580.40 is: 771,870.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,730.30 : 1,223,595.45 = 514,580.40 : x
  2. Step 2: Convert to fraction form
    815,730.30/1,223,595.45 = 514,580.40/x
  3. Step 3: Cross multiply
    815,730.30x = 1,223,595.45 × 514,580.40
  4. Step 4: Simplify right side
    815,730.30x = 629,638,236,099.18
  5. Step 5: Solve for x
    x = 629,638,236,099.18/815,730.30
  6. Step 6: Final answer
    x = 771,870.60

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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.