Home / 991,846.40-1,487,909.70-317,770.02

Finding the Fourth Proportional to 991,846.40, 1,487,909.70 and 317,770.02

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Solution

The fourth proportional to 991,846.40, 1,487,909.70 and 317,770.02 is: 476,699.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,846.40 : 1,487,909.70 = 317,770.02 : x
  2. Step 2: Convert to fraction form
    991,846.40/1,487,909.70 = 317,770.02/x
  3. Step 3: Cross multiply
    991,846.40x = 1,487,909.70 × 317,770.02
  4. Step 4: Simplify right side
    991,846.40x = 472,813,095,127.19
  5. Step 5: Solve for x
    x = 472,813,095,127.19/991,846.40
  6. Step 6: Final answer
    x = 476,699.92

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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.