Home / 830,021.30-1,244,047.80-745,384.40

Finding the Fourth Proportional to 830,021.30, 1,244,047.80 and 745,384.40

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Solution

The fourth proportional to 830,021.30, 1,244,047.80 and 745,384.40 is: 1,117,192.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,021.30 : 1,244,047.80 = 745,384.40 : x
  2. Step 2: Convert to fraction form
    830,021.30/1,244,047.80 = 745,384.40/x
  3. Step 3: Cross multiply
    830,021.30x = 1,244,047.80 × 745,384.40
  4. Step 4: Simplify right side
    830,021.30x = 927,293,822,974.32
  5. Step 5: Solve for x
    x = 927,293,822,974.32/830,021.30
  6. Step 6: Final answer
    x = 1,117,192.80

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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.