Home / 1,355,335.03-1,870,387.30-743,519.05

Finding the Fourth Proportional to 1,355,335.03, 1,870,387.30 and 743,519.05

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Solution

The fourth proportional to 1,355,335.03, 1,870,387.30 and 743,519.05 is: 1,026,069.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,355,335.03 : 1,870,387.30 = 743,519.05 : x
  2. Step 2: Convert to fraction form
    1,355,335.03/1,870,387.30 = 743,519.05/x
  3. Step 3: Cross multiply
    1,355,335.03x = 1,870,387.30 × 743,519.05
  4. Step 4: Simplify right side
    1,355,335.03x = 1,390,668,584,681.50
  5. Step 5: Solve for x
    x = 1,390,668,584,681.50/1,355,335.03
  6. Step 6: Final answer
    x = 1,026,069.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.