Home / 1,312,300.21-1,810,974.28-708,688.21

Finding the Fourth Proportional to 1,312,300.21, 1,810,974.28 and 708,688.21

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Solution

The fourth proportional to 1,312,300.21, 1,810,974.28 and 708,688.21 is: 977,989.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,300.21 : 1,810,974.28 = 708,688.21 : x
  2. Step 2: Convert to fraction form
    1,312,300.21/1,810,974.28 = 708,688.21/x
  3. Step 3: Cross multiply
    1,312,300.21x = 1,810,974.28 × 708,688.21
  4. Step 4: Simplify right side
    1,312,300.21x = 1,283,416,119,077.52
  5. Step 5: Solve for x
    x = 1,283,416,119,077.52/1,312,300.21
  6. Step 6: Final answer
    x = 977,989.72

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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.