Home / 916,994.52-1,265,395.50-509,072.58

Finding the Fourth Proportional to 916,994.52, 1,265,395.50 and 509,072.58

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Solution

The fourth proportional to 916,994.52, 1,265,395.50 and 509,072.58 is: 702,488.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,994.52 : 1,265,395.50 = 509,072.58 : x
  2. Step 2: Convert to fraction form
    916,994.52/1,265,395.50 = 509,072.58/x
  3. Step 3: Cross multiply
    916,994.52x = 1,265,395.50 × 509,072.58
  4. Step 4: Simplify right side
    916,994.52x = 644,178,151,905.39
  5. Step 5: Solve for x
    x = 644,178,151,905.39/916,994.52
  6. Step 6: Final answer
    x = 702,488.55

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1.5x scale

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.