Home / 901,400.84-1,243,931.08-538,807.12

Finding the Fourth Proportional to 901,400.84, 1,243,931.08 and 538,807.12

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Solution

The fourth proportional to 901,400.84, 1,243,931.08 and 538,807.12 is: 743,552.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    901,400.84 : 1,243,931.08 = 538,807.12 : x
  2. Step 2: Convert to fraction form
    901,400.84/1,243,931.08 = 538,807.12/x
  3. Step 3: Cross multiply
    901,400.84x = 1,243,931.08 × 538,807.12
  4. Step 4: Simplify right side
    901,400.84x = 670,238,922,693.29
  5. Step 5: Solve for x
    x = 670,238,922,693.29/901,400.84
  6. Step 6: Final answer
    x = 743,552.58

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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.