Home / 1,275,655.80-1,913,483.70-708,785.40

Finding the Fourth Proportional to 1,275,655.80, 1,913,483.70 and 708,785.40

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Solution

The fourth proportional to 1,275,655.80, 1,913,483.70 and 708,785.40 is: 1,063,178.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,275,655.80 : 1,913,483.70 = 708,785.40 : x
  2. Step 2: Convert to fraction form
    1,275,655.80/1,913,483.70 = 708,785.40/x
  3. Step 3: Cross multiply
    1,275,655.80x = 1,913,483.70 × 708,785.40
  4. Step 4: Simplify right side
    1,275,655.80x = 1,356,249,309,697.98
  5. Step 5: Solve for x
    x = 1,356,249,309,697.98/1,275,655.80
  6. Step 6: Final answer
    x = 1,063,178.10

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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.