Home / 1,120,400.94-1,546,284-637,038.50

Finding the Fourth Proportional to 1,120,400.94, 1,546,284 and 637,038.50

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Solution

The fourth proportional to 1,120,400.94, 1,546,284 and 637,038.50 is: 879,187.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,400.94 : 1,546,284 = 637,038.50 : x
  2. Step 2: Convert to fraction form
    1,120,400.94/1,546,284 = 637,038.50/x
  3. Step 3: Cross multiply
    1,120,400.94x = 1,546,284 × 637,038.50
  4. Step 4: Simplify right side
    1,120,400.94x = 985,042,439,934
  5. Step 5: Solve for x
    x = 985,042,439,934/1,120,400.94
  6. Step 6: Final answer
    x = 879,187.45

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1.5x scale

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.