Home / 830,030.70-1,245,046.05-812,534.70

Finding the Fourth Proportional to 830,030.70, 1,245,046.05 and 812,534.70

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Solution

The fourth proportional to 830,030.70, 1,245,046.05 and 812,534.70 is: 1,218,802.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,030.70 : 1,245,046.05 = 812,534.70 : x
  2. Step 2: Convert to fraction form
    830,030.70/1,245,046.05 = 812,534.70/x
  3. Step 3: Cross multiply
    830,030.70x = 1,245,046.05 × 812,534.70
  4. Step 4: Simplify right side
    830,030.70x = 1,011,643,118,722.94
  5. Step 5: Solve for x
    x = 1,011,643,118,722.94/830,030.70
  6. Step 6: Final answer
    x = 1,218,802.05

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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.