Home / 756,005.70-1,134,008.55-488,316.90

Finding the Fourth Proportional to 756,005.70, 1,134,008.55 and 488,316.90

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Solution

The fourth proportional to 756,005.70, 1,134,008.55 and 488,316.90 is: 732,475.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,005.70 : 1,134,008.55 = 488,316.90 : x
  2. Step 2: Convert to fraction form
    756,005.70/1,134,008.55 = 488,316.90/x
  3. Step 3: Cross multiply
    756,005.70x = 1,134,008.55 × 488,316.90
  4. Step 4: Simplify right side
    756,005.70x = 553,755,539,709.50
  5. Step 5: Solve for x
    x = 553,755,539,709.50/756,005.70
  6. Step 6: Final answer
    x = 732,475.35

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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.