Home / 724,603.50-999,984.06-402,313.64

Finding the Fourth Proportional to 724,603.50, 999,984.06 and 402,313.64

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Solution

The fourth proportional to 724,603.50, 999,984.06 and 402,313.64 is: 555,210.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,603.50 : 999,984.06 = 402,313.64 : x
  2. Step 2: Convert to fraction form
    724,603.50/999,984.06 = 402,313.64/x
  3. Step 3: Cross multiply
    724,603.50x = 999,984.06 × 402,313.64
  4. Step 4: Simplify right side
    724,603.50x = 402,307,222,120.66
  5. Step 5: Solve for x
    x = 402,307,222,120.66/724,603.50
  6. Step 6: Final answer
    x = 555,210.16

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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.