Home / 525,128.08-724,693.44-298,788.16

Finding the Fourth Proportional to 525,128.08, 724,693.44 and 298,788.16

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Solution

The fourth proportional to 525,128.08, 724,693.44 and 298,788.16 is: 412,337.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,128.08 : 724,693.44 = 298,788.16 : x
  2. Step 2: Convert to fraction form
    525,128.08/724,693.44 = 298,788.16/x
  3. Step 3: Cross multiply
    525,128.08x = 724,693.44 × 298,788.16
  4. Step 4: Simplify right side
    525,128.08x = 216,529,819,501.67
  5. Step 5: Solve for x
    x = 216,529,819,501.67/525,128.08
  6. Step 6: Final answer
    x = 412,337.16

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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.