Home / 1,124,280.64-1,686,423.84-459,432.64

Finding the Fourth Proportional to 1,124,280.64, 1,686,423.84 and 459,432.64

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Solution

The fourth proportional to 1,124,280.64, 1,686,423.84 and 459,432.64 is: 689,150.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,124,280.64 : 1,686,423.84 = 459,432.64 : x
  2. Step 2: Convert to fraction form
    1,124,280.64/1,686,423.84 = 459,432.64/x
  3. Step 3: Cross multiply
    1,124,280.64x = 1,686,423.84 × 459,432.64
  4. Step 4: Simplify right side
    1,124,280.64x = 774,798,156,970.14
  5. Step 5: Solve for x
    x = 774,798,156,970.14/1,124,280.64
  6. Step 6: Final answer
    x = 689,150.14

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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.