Home / 870,749.40-1,306,124.10-760,157.40

Finding the Fourth Proportional to 870,749.40, 1,306,124.10 and 760,157.40

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Solution

The fourth proportional to 870,749.40, 1,306,124.10 and 760,157.40 is: 1,140,236.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,749.40 : 1,306,124.10 = 760,157.40 : x
  2. Step 2: Convert to fraction form
    870,749.40/1,306,124.10 = 760,157.40/x
  3. Step 3: Cross multiply
    870,749.40x = 1,306,124.10 × 760,157.40
  4. Step 4: Simplify right side
    870,749.40x = 992,859,899,933.34
  5. Step 5: Solve for x
    x = 992,859,899,933.34/870,749.40
  6. Step 6: Final answer
    x = 1,140,236.10

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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.