Home / 1,316,039.80-1,816,140.72-712,427.80

Finding the Fourth Proportional to 1,316,039.80, 1,816,140.72 and 712,427.80

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Solution

The fourth proportional to 1,316,039.80, 1,816,140.72 and 712,427.80 is: 983,153.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316,039.80 : 1,816,140.72 = 712,427.80 : x
  2. Step 2: Convert to fraction form
    1,316,039.80/1,816,140.72 = 712,427.80/x
  3. Step 3: Cross multiply
    1,316,039.80x = 1,816,140.72 × 712,427.80
  4. Step 4: Simplify right side
    1,316,039.80x = 1,293,869,137,640.02
  5. Step 5: Solve for x
    x = 1,293,869,137,640.02/1,316,039.80
  6. Step 6: Final answer
    x = 983,153.50

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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.