Home / 916,957.84-1,265,406.90-509,053.18

Finding the Fourth Proportional to 916,957.84, 1,265,406.90 and 509,053.18

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Solution

The fourth proportional to 916,957.84, 1,265,406.90 and 509,053.18 is: 702,496.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,957.84 : 1,265,406.90 = 509,053.18 : x
  2. Step 2: Convert to fraction form
    916,957.84/1,265,406.90 = 509,053.18/x
  3. Step 3: Cross multiply
    916,957.84x = 1,265,406.90 × 509,053.18
  4. Step 4: Simplify right side
    916,957.84x = 644,159,406,438.94
  5. Step 5: Solve for x
    x = 644,159,406,438.94/916,957.84
  6. Step 6: Final answer
    x = 702,496.21

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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.