Home / 1,355,681.52-1,870,777.35-743,820.48

Finding the Fourth Proportional to 1,355,681.52, 1,870,777.35 and 743,820.48

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Solution

The fourth proportional to 1,355,681.52, 1,870,777.35 and 743,820.48 is: 1,026,437.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,355,681.52 : 1,870,777.35 = 743,820.48 : x
  2. Step 2: Convert to fraction form
    1,355,681.52/1,870,777.35 = 743,820.48/x
  3. Step 3: Cross multiply
    1,355,681.52x = 1,870,777.35 × 743,820.48
  4. Step 4: Simplify right side
    1,355,681.52x = 1,391,522,506,450.13
  5. Step 5: Solve for x
    x = 1,391,522,506,450.13/1,355,681.52
  6. Step 6: Final answer
    x = 1,026,437.62

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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.