Home / 459,916.95-689,875.61-206,901.90

Finding the Fourth Proportional to 459,916.95, 689,875.61 and 206,901.90

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Solution

The fourth proportional to 459,916.95, 689,875.61 and 206,901.90 is: 310,352.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,916.95 : 689,875.61 = 206,901.90 : x
  2. Step 2: Convert to fraction form
    459,916.95/689,875.61 = 206,901.90/x
  3. Step 3: Cross multiply
    459,916.95x = 689,875.61 × 206,901.90
  4. Step 4: Simplify right side
    459,916.95x = 142,736,573,438.15
  5. Step 5: Solve for x
    x = 142,736,573,438.15/459,916.95
  6. Step 6: Final answer
    x = 310,352.93

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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.