Home / 864,864.60-1,297,420.90-265,875.98

Finding the Fourth Proportional to 864,864.60, 1,297,420.90 and 265,875.98

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Solution

The fourth proportional to 864,864.60, 1,297,420.90 and 265,875.98 is: 398,852.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,864.60 : 1,297,420.90 = 265,875.98 : x
  2. Step 2: Convert to fraction form
    864,864.60/1,297,420.90 = 265,875.98/x
  3. Step 3: Cross multiply
    864,864.60x = 1,297,420.90 × 265,875.98
  4. Step 4: Simplify right side
    864,864.60x = 344,953,053,259.98
  5. Step 5: Solve for x
    x = 344,953,053,259.98/864,864.60
  6. Step 6: Final answer
    x = 398,852.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.