Home / 724,603.94-999,984.66-402,314.05

Finding the Fourth Proportional to 724,603.94, 999,984.66 and 402,314.05

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Solution

The fourth proportional to 724,603.94, 999,984.66 and 402,314.05 is: 555,210.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,603.94 : 999,984.66 = 402,314.05 : x
  2. Step 2: Convert to fraction form
    724,603.94/999,984.66 = 402,314.05/x
  3. Step 3: Cross multiply
    724,603.94x = 999,984.66 × 402,314.05
  4. Step 4: Simplify right side
    724,603.94x = 402,307,878,502.47
  5. Step 5: Solve for x
    x = 402,307,878,502.47/724,603.94
  6. Step 6: Final answer
    x = 555,210.72

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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.