Home / 727,341.32-1,003,715.34-400,663.46

Finding the Fourth Proportional to 727,341.32, 1,003,715.34 and 400,663.46

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Solution

The fourth proportional to 727,341.32, 1,003,715.34 and 400,663.46 is: 552,906.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,341.32 : 1,003,715.34 = 400,663.46 : x
  2. Step 2: Convert to fraction form
    727,341.32/1,003,715.34 = 400,663.46/x
  3. Step 3: Cross multiply
    727,341.32x = 1,003,715.34 × 400,663.46
  4. Step 4: Simplify right side
    727,341.32x = 402,152,060,979.48
  5. Step 5: Solve for x
    x = 402,152,060,979.48/727,341.32
  6. Step 6: Final answer
    x = 552,906.94

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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.