Home / 724,362.18-999,619.02-402,071.52

Finding the Fourth Proportional to 724,362.18, 999,619.02 and 402,071.52

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Solution

The fourth proportional to 724,362.18, 999,619.02 and 402,071.52 is: 554,858.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,362.18 : 999,619.02 = 402,071.52 : x
  2. Step 2: Convert to fraction form
    724,362.18/999,619.02 = 402,071.52/x
  3. Step 3: Cross multiply
    724,362.18x = 999,619.02 × 402,071.52
  4. Step 4: Simplify right side
    724,362.18x = 401,918,338,792.31
  5. Step 5: Solve for x
    x = 401,918,338,792.31/724,362.18
  6. Step 6: Final answer
    x = 554,858.26

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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.