Home / 917,465.81-1,266,102.83-515,057.81

Finding the Fourth Proportional to 917,465.81, 1,266,102.83 and 515,057.81

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Solution

The fourth proportional to 917,465.81, 1,266,102.83 and 515,057.81 is: 710,779.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,465.81 : 1,266,102.83 = 515,057.81 : x
  2. Step 2: Convert to fraction form
    917,465.81/1,266,102.83 = 515,057.81/x
  3. Step 3: Cross multiply
    917,465.81x = 1,266,102.83 × 515,057.81
  4. Step 4: Simplify right side
    917,465.81x = 652,116,151,444.57
  5. Step 5: Solve for x
    x = 652,116,151,444.57/917,465.81
  6. Step 6: Final answer
    x = 710,779.78

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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.