Home / 1,686,345.40-2,529,518.10-977,757.40

Finding the Fourth Proportional to 1,686,345.40, 2,529,518.10 and 977,757.40

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Solution

The fourth proportional to 1,686,345.40, 2,529,518.10 and 977,757.40 is: 1,466,636.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,686,345.40 : 2,529,518.10 = 977,757.40 : x
  2. Step 2: Convert to fraction form
    1,686,345.40/2,529,518.10 = 977,757.40/x
  3. Step 3: Cross multiply
    1,686,345.40x = 2,529,518.10 × 977,757.40
  4. Step 4: Simplify right side
    1,686,345.40x = 2,473,255,040,708.94
  5. Step 5: Solve for x
    x = 2,473,255,040,708.94/1,686,345.40
  6. Step 6: Final answer
    x = 1,466,636.10

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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.