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Finding the Fourth Proportional to 708,332.36, 977,525.03 and 402,460.60

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Solution

The fourth proportional to 708,332.36, 977,525.03 and 402,460.60 is: 555,410.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,332.36 : 977,525.03 = 402,460.60 : x
  2. Step 2: Convert to fraction form
    708,332.36/977,525.03 = 402,460.60/x
  3. Step 3: Cross multiply
    708,332.36x = 977,525.03 × 402,460.60
  4. Step 4: Simplify right side
    708,332.36x = 393,415,303,188.89
  5. Step 5: Solve for x
    x = 393,415,303,188.89/708,332.36
  6. Step 6: Final answer
    x = 555,410.61

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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.