Home / 724,602.69-999,982.94-402,312.80

Finding the Fourth Proportional to 724,602.69, 999,982.94 and 402,312.80

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Solution

The fourth proportional to 724,602.69, 999,982.94 and 402,312.80 is: 555,209.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,602.69 : 999,982.94 = 402,312.80 : x
  2. Step 2: Convert to fraction form
    724,602.69/999,982.94 = 402,312.80/x
  3. Step 3: Cross multiply
    724,602.69x = 999,982.94 × 402,312.80
  4. Step 4: Simplify right side
    724,602.69x = 402,305,937,032.03
  5. Step 5: Solve for x
    x = 402,305,937,032.03/724,602.69
  6. Step 6: Final answer
    x = 555,209.00

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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.