Home / 459,569.90-689,916.45-260,029.10

Finding the Fourth Proportional to 459,569.90, 689,916.45 and 260,029.10

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Solution

The fourth proportional to 459,569.90, 689,916.45 and 260,029.10 is: 390,361.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,569.90 : 689,916.45 = 260,029.10 : x
  2. Step 2: Convert to fraction form
    459,569.90/689,916.45 = 260,029.10/x
  3. Step 3: Cross multiply
    459,569.90x = 689,916.45 × 260,029.10
  4. Step 4: Simplify right side
    459,569.90x = 179,398,353,568.70
  5. Step 5: Solve for x
    x = 179,398,353,568.70/459,569.90
  6. Step 6: Final answer
    x = 390,361.41

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1.5x scale

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.