Home / 1,128,254.28-1,688,109.48-696,073.92

Finding the Fourth Proportional to 1,128,254.28, 1,688,109.48 and 696,073.92

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Solution

The fourth proportional to 1,128,254.28, 1,688,109.48 and 696,073.92 is: 1,041,475.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,254.28 : 1,688,109.48 = 696,073.92 : x
  2. Step 2: Convert to fraction form
    1,128,254.28/1,688,109.48 = 696,073.92/x
  3. Step 3: Cross multiply
    1,128,254.28x = 1,688,109.48 × 696,073.92
  4. Step 4: Simplify right side
    1,128,254.28x = 1,175,048,983,132.76
  5. Step 5: Solve for x
    x = 1,175,048,983,132.76/1,128,254.28
  6. Step 6: Final answer
    x = 1,041,475.32

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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.