Home / 1,186,482.13-1,779,359.60-428,231.00

Finding the Fourth Proportional to 1,186,482.13, 1,779,359.60 and 428,231.00

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Solution

The fourth proportional to 1,186,482.13, 1,779,359.60 and 428,231.00 is: 642,215.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,482.13 : 1,779,359.60 = 428,231.00 : x
  2. Step 2: Convert to fraction form
    1,186,482.13/1,779,359.60 = 428,231.00/x
  3. Step 3: Cross multiply
    1,186,482.13x = 1,779,359.60 × 428,231.00
  4. Step 4: Simplify right side
    1,186,482.13x = 761,976,946,386.58
  5. Step 5: Solve for x
    x = 761,976,946,386.58/1,186,482.13
  6. Step 6: Final answer
    x = 642,215.28

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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.