Home / 985,878.64-1,360,575.53-556,001.92

Finding the Fourth Proportional to 985,878.64, 1,360,575.53 and 556,001.92

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Solution

The fourth proportional to 985,878.64, 1,360,575.53 and 556,001.92 is: 767,318.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,878.64 : 1,360,575.53 = 556,001.92 : x
  2. Step 2: Convert to fraction form
    985,878.64/1,360,575.53 = 556,001.92/x
  3. Step 3: Cross multiply
    985,878.64x = 1,360,575.53 × 556,001.92
  4. Step 4: Simplify right side
    985,878.64x = 756,482,606,985.02
  5. Step 5: Solve for x
    x = 756,482,606,985.02/985,878.64
  6. Step 6: Final answer
    x = 767,318.18

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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.