Home / 1,223,172.06-1,688,019.39-679,316.46

Finding the Fourth Proportional to 1,223,172.06, 1,688,019.39 and 679,316.46

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Solution

The fourth proportional to 1,223,172.06, 1,688,019.39 and 679,316.46 is: 937,480.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,172.06 : 1,688,019.39 = 679,316.46 : x
  2. Step 2: Convert to fraction form
    1,223,172.06/1,688,019.39 = 679,316.46/x
  3. Step 3: Cross multiply
    1,223,172.06x = 1,688,019.39 × 679,316.46
  4. Step 4: Simplify right side
    1,223,172.06x = 1,146,699,356,426.16
  5. Step 5: Solve for x
    x = 1,146,699,356,426.16/1,223,172.06
  6. Step 6: Final answer
    x = 937,480.01

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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.