Home / 1,287,610.04-1,777,086.98-771,386.01

Finding the Fourth Proportional to 1,287,610.04, 1,777,086.98 and 771,386.01

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Solution

The fourth proportional to 1,287,610.04, 1,777,086.98 and 771,386.01 is: 1,064,623.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,610.04 : 1,777,086.98 = 771,386.01 : x
  2. Step 2: Convert to fraction form
    1,287,610.04/1,777,086.98 = 771,386.01/x
  3. Step 3: Cross multiply
    1,287,610.04x = 1,777,086.98 × 771,386.01
  4. Step 4: Simplify right side
    1,287,610.04x = 1,370,820,031,068.22
  5. Step 5: Solve for x
    x = 1,370,820,031,068.22/1,287,610.04
  6. Step 6: Final answer
    x = 1,064,623.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.