Home / 644,267.09-889,533.42-402,658.27

Finding the Fourth Proportional to 644,267.09, 889,533.42 and 402,658.27

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Solution

The fourth proportional to 644,267.09, 889,533.42 and 402,658.27 is: 555,946.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,267.09 : 889,533.42 = 402,658.27 : x
  2. Step 2: Convert to fraction form
    644,267.09/889,533.42 = 402,658.27/x
  3. Step 3: Cross multiply
    644,267.09x = 889,533.42 × 402,658.27
  4. Step 4: Simplify right side
    644,267.09x = 358,177,988,004.38
  5. Step 5: Solve for x
    x = 358,177,988,004.38/644,267.09
  6. Step 6: Final answer
    x = 555,946.43

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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.