Home / 1,007,647.39-1,390,539.74-572,060.78

Finding the Fourth Proportional to 1,007,647.39, 1,390,539.74 and 572,060.78

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Solution

The fourth proportional to 1,007,647.39, 1,390,539.74 and 572,060.78 is: 789,436.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,007,647.39 : 1,390,539.74 = 572,060.78 : x
  2. Step 2: Convert to fraction form
    1,007,647.39/1,390,539.74 = 572,060.78/x
  3. Step 3: Cross multiply
    1,007,647.39x = 1,390,539.74 × 572,060.78
  4. Step 4: Simplify right side
    1,007,647.39x = 795,473,248,285.40
  5. Step 5: Solve for x
    x = 795,473,248,285.40/1,007,647.39
  6. Step 6: Final answer
    x = 789,436.12

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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.