Home / 1,004,813.20-1,507,219.80-815,856.40

Finding the Fourth Proportional to 1,004,813.20, 1,507,219.80 and 815,856.40

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Solution

The fourth proportional to 1,004,813.20, 1,507,219.80 and 815,856.40 is: 1,223,784.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,004,813.20 : 1,507,219.80 = 815,856.40 : x
  2. Step 2: Convert to fraction form
    1,004,813.20/1,507,219.80 = 815,856.40/x
  3. Step 3: Cross multiply
    1,004,813.20x = 1,507,219.80 × 815,856.40
  4. Step 4: Simplify right side
    1,004,813.20x = 1,229,674,920,036.72
  5. Step 5: Solve for x
    x = 1,229,674,920,036.72/1,004,813.20
  6. Step 6: Final answer
    x = 1,223,784.60

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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.