Home / 648,901.63-895,536.39-358,538.50

Finding the Fourth Proportional to 648,901.63, 895,536.39 and 358,538.50

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Solution

The fourth proportional to 648,901.63, 895,536.39 and 358,538.50 is: 494,811.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,901.63 : 895,536.39 = 358,538.50 : x
  2. Step 2: Convert to fraction form
    648,901.63/895,536.39 = 358,538.50/x
  3. Step 3: Cross multiply
    648,901.63x = 895,536.39 × 358,538.50
  4. Step 4: Simplify right side
    648,901.63x = 321,084,273,966.02
  5. Step 5: Solve for x
    x = 321,084,273,966.02/648,901.63
  6. Step 6: Final answer
    x = 494,811.94

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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.