Home / 530,225.13-731,431.85-315,212.25

Finding the Fourth Proportional to 530,225.13, 731,431.85 and 315,212.25

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Solution

The fourth proportional to 530,225.13, 731,431.85 and 315,212.25 is: 434,827.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,225.13 : 731,431.85 = 315,212.25 : x
  2. Step 2: Convert to fraction form
    530,225.13/731,431.85 = 315,212.25/x
  3. Step 3: Cross multiply
    530,225.13x = 731,431.85 × 315,212.25
  4. Step 4: Simplify right side
    530,225.13x = 230,556,277,584.10
  5. Step 5: Solve for x
    x = 230,556,277,584.10/530,225.13
  6. Step 6: Final answer
    x = 434,827.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.