Home / 1,291,356.10-1,936,342.95-542,556.10

Finding the Fourth Proportional to 1,291,356.10, 1,936,342.95 and 542,556.10

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Solution

The fourth proportional to 1,291,356.10, 1,936,342.95 and 542,556.10 is: 813,543.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,356.10 : 1,936,342.95 = 542,556.10 : x
  2. Step 2: Convert to fraction form
    1,291,356.10/1,936,342.95 = 542,556.10/x
  3. Step 3: Cross multiply
    1,291,356.10x = 1,936,342.95 × 542,556.10
  4. Step 4: Simplify right side
    1,291,356.10x = 1,050,574,679,214.49
  5. Step 5: Solve for x
    x = 1,050,574,679,214.49/1,291,356.10
  6. Step 6: Final answer
    x = 813,543.75

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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.