Home / 459,746.74-689,646.01-139,909.01

Finding the Fourth Proportional to 459,746.74, 689,646.01 and 139,909.01

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Solution

The fourth proportional to 459,746.74, 689,646.01 and 139,909.01 is: 209,871.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,746.74 : 689,646.01 = 139,909.01 : x
  2. Step 2: Convert to fraction form
    459,746.74/689,646.01 = 139,909.01/x
  3. Step 3: Cross multiply
    459,746.74x = 689,646.01 × 139,909.01
  4. Step 4: Simplify right side
    459,746.74x = 96,487,690,859.32
  5. Step 5: Solve for x
    x = 96,487,690,859.32/459,746.74
  6. Step 6: Final answer
    x = 209,871.40

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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.