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Finding the Fourth Proportional to 719,271.36, 992,930.40 and 417,407.04

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Solution

The fourth proportional to 719,271.36, 992,930.40 and 417,407.04 is: 576,216.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,271.36 : 992,930.40 = 417,407.04 : x
  2. Step 2: Convert to fraction form
    719,271.36/992,930.40 = 417,407.04/x
  3. Step 3: Cross multiply
    719,271.36x = 992,930.40 × 417,407.04
  4. Step 4: Simplify right side
    719,271.36x = 414,456,139,190.02
  5. Step 5: Solve for x
    x = 414,456,139,190.02/719,271.36
  6. Step 6: Final answer
    x = 576,216.66

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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.