Home / 749,570.94-1,122,554.70-428,750.10

Finding the Fourth Proportional to 749,570.94, 1,122,554.70 and 428,750.10

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Solution

The fourth proportional to 749,570.94, 1,122,554.70 and 428,750.10 is: 642,094.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,570.94 : 1,122,554.70 = 428,750.10 : x
  2. Step 2: Convert to fraction form
    749,570.94/1,122,554.70 = 428,750.10/x
  3. Step 3: Cross multiply
    749,570.94x = 1,122,554.70 × 428,750.10
  4. Step 4: Simplify right side
    749,570.94x = 481,295,439,880.47
  5. Step 5: Solve for x
    x = 481,295,439,880.47/749,570.94
  6. Step 6: Final answer
    x = 642,094.58

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1.5x scale

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.