Home / 1,071,640.80-1,607,461.20-819,698.40

Finding the Fourth Proportional to 1,071,640.80, 1,607,461.20 and 819,698.40

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Solution

The fourth proportional to 1,071,640.80, 1,607,461.20 and 819,698.40 is: 1,229,547.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,071,640.80 : 1,607,461.20 = 819,698.40 : x
  2. Step 2: Convert to fraction form
    1,071,640.80/1,607,461.20 = 819,698.40/x
  3. Step 3: Cross multiply
    1,071,640.80x = 1,607,461.20 × 819,698.40
  4. Step 4: Simplify right side
    1,071,640.80x = 1,317,633,373,702.08
  5. Step 5: Solve for x
    x = 1,317,633,373,702.08/1,071,640.80
  6. Step 6: Final answer
    x = 1,229,547.60

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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.