Home / 724,009.34-999,117.60-401,712.50

Finding the Fourth Proportional to 724,009.34, 999,117.60 and 401,712.50

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Solution

The fourth proportional to 724,009.34, 999,117.60 and 401,712.50 is: 554,354.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,009.34 : 999,117.60 = 401,712.50 : x
  2. Step 2: Convert to fraction form
    724,009.34/999,117.60 = 401,712.50/x
  3. Step 3: Cross multiply
    724,009.34x = 999,117.60 × 401,712.50
  4. Step 4: Simplify right side
    724,009.34x = 401,358,028,890
  5. Step 5: Solve for x
    x = 401,358,028,890/724,009.34
  6. Step 6: Final answer
    x = 554,354.77

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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.