Home / 869,837.40-1,303,200.90-745,421.40

Finding the Fourth Proportional to 869,837.40, 1,303,200.90 and 745,421.40

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Solution

The fourth proportional to 869,837.40, 1,303,200.90 and 745,421.40 is: 1,116,799.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,837.40 : 1,303,200.90 = 745,421.40 : x
  2. Step 2: Convert to fraction form
    869,837.40/1,303,200.90 = 745,421.40/x
  3. Step 3: Cross multiply
    869,837.40x = 1,303,200.90 × 745,421.40
  4. Step 4: Simplify right side
    869,837.40x = 971,433,839,359.26
  5. Step 5: Solve for x
    x = 971,433,839,359.26/869,837.40
  6. Step 6: Final answer
    x = 1,116,799.35

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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.