Home / 727,312.30-1,003,713.80-400,649.00

Finding the Fourth Proportional to 727,312.30, 1,003,713.80 and 400,649.00

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Solution

The fourth proportional to 727,312.30, 1,003,713.80 and 400,649.00 is: 552,908.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,312.30 : 1,003,713.80 = 400,649.00 : x
  2. Step 2: Convert to fraction form
    727,312.30/1,003,713.80 = 400,649.00/x
  3. Step 3: Cross multiply
    727,312.30x = 1,003,713.80 × 400,649.00
  4. Step 4: Simplify right side
    727,312.30x = 402,136,926,336.12
  5. Step 5: Solve for x
    x = 402,136,926,336.12/727,312.30
  6. Step 6: Final answer
    x = 552,908.19

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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.