Home / 459,588.48-689,391.36-144,038.40

Finding the Fourth Proportional to 459,588.48, 689,391.36 and 144,038.40

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Solution

The fourth proportional to 459,588.48, 689,391.36 and 144,038.40 is: 216,060.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,588.48 : 689,391.36 = 144,038.40 : x
  2. Step 2: Convert to fraction form
    459,588.48/689,391.36 = 144,038.40/x
  3. Step 3: Cross multiply
    459,588.48x = 689,391.36 × 144,038.40
  4. Step 4: Simplify right side
    459,588.48x = 99,298,828,468.22
  5. Step 5: Solve for x
    x = 99,298,828,468.22/459,588.48
  6. Step 6: Final answer
    x = 216,060.31

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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.