Home / 992,051.72-1,368,970.04-556,445.12

Finding the Fourth Proportional to 992,051.72, 1,368,970.04 and 556,445.12

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Solution

The fourth proportional to 992,051.72, 1,368,970.04 and 556,445.12 is: 767,859.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,051.72 : 1,368,970.04 = 556,445.12 : x
  2. Step 2: Convert to fraction form
    992,051.72/1,368,970.04 = 556,445.12/x
  3. Step 3: Cross multiply
    992,051.72x = 1,368,970.04 × 556,445.12
  4. Step 4: Simplify right side
    992,051.72x = 761,756,698,184.21
  5. Step 5: Solve for x
    x = 761,756,698,184.21/992,051.72
  6. Step 6: Final answer
    x = 767,859.86

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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.