Home / 870,141.40-1,303,656.90-745,725.40

Finding the Fourth Proportional to 870,141.40, 1,303,656.90 and 745,725.40

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Solution

The fourth proportional to 870,141.40, 1,303,656.90 and 745,725.40 is: 1,117,255.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,141.40 : 1,303,656.90 = 745,725.40 : x
  2. Step 2: Convert to fraction form
    870,141.40/1,303,656.90 = 745,725.40/x
  3. Step 3: Cross multiply
    870,141.40x = 1,303,656.90 × 745,725.40
  4. Step 4: Simplify right side
    870,141.40x = 972,170,063,215.26
  5. Step 5: Solve for x
    x = 972,170,063,215.26/870,141.40
  6. Step 6: Final answer
    x = 1,117,255.27

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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.