Home / 1,387,075.20-2,079,230.40-637,814.40

Finding the Fourth Proportional to 1,387,075.20, 2,079,230.40 and 637,814.40

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Solution

The fourth proportional to 1,387,075.20, 2,079,230.40 and 637,814.40 is: 956,085.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,075.20 : 2,079,230.40 = 637,814.40 : x
  2. Step 2: Convert to fraction form
    1,387,075.20/2,079,230.40 = 637,814.40/x
  3. Step 3: Cross multiply
    1,387,075.20x = 2,079,230.40 × 637,814.40
  4. Step 4: Simplify right side
    1,387,075.20x = 1,326,163,090,037.76
  5. Step 5: Solve for x
    x = 1,326,163,090,037.76/1,387,075.20
  6. Step 6: Final answer
    x = 956,085.94

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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.