Home / 459,916.83-689,986.32-144,373.74

Finding the Fourth Proportional to 459,916.83, 689,986.32 and 144,373.74

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Solution

The fourth proportional to 459,916.83, 689,986.32 and 144,373.74 is: 216,595.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,916.83 : 689,986.32 = 144,373.74 : x
  2. Step 2: Convert to fraction form
    459,916.83/689,986.32 = 144,373.74/x
  3. Step 3: Cross multiply
    459,916.83x = 689,986.32 × 144,373.74
  4. Step 4: Simplify right side
    459,916.83x = 99,615,905,567.24
  5. Step 5: Solve for x
    x = 99,615,905,567.24/459,916.83
  6. Step 6: Final answer
    x = 216,595.48

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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.