Home / 863,666.15-1,292,841.81-563,500.40

Finding the Fourth Proportional to 863,666.15, 1,292,841.81 and 563,500.40

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Solution

The fourth proportional to 863,666.15, 1,292,841.81 and 563,500.40 is: 843,516.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,666.15 : 1,292,841.81 = 563,500.40 : x
  2. Step 2: Convert to fraction form
    863,666.15/1,292,841.81 = 563,500.40/x
  3. Step 3: Cross multiply
    863,666.15x = 1,292,841.81 × 563,500.40
  4. Step 4: Simplify right side
    863,666.15x = 728,516,870,607.52
  5. Step 5: Solve for x
    x = 728,516,870,607.52/863,666.15
  6. Step 6: Final answer
    x = 843,516.76

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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.