Home / 644,962.32-889,981.20-403,271.52

Finding the Fourth Proportional to 644,962.32, 889,981.20 and 403,271.52

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Solution

The fourth proportional to 644,962.32, 889,981.20 and 403,271.52 is: 556,472.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,962.32 : 889,981.20 = 403,271.52 : x
  2. Step 2: Convert to fraction form
    644,962.32/889,981.20 = 403,271.52/x
  3. Step 3: Cross multiply
    644,962.32x = 889,981.20 × 403,271.52
  4. Step 4: Simplify right side
    644,962.32x = 358,904,071,295.42
  5. Step 5: Solve for x
    x = 358,904,071,295.42/644,962.32
  6. Step 6: Final answer
    x = 556,472.93

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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.