Home / 916,400.32-1,264,571.67-508,476.31

Finding the Fourth Proportional to 916,400.32, 1,264,571.67 and 508,476.31

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Solution

The fourth proportional to 916,400.32, 1,264,571.67 and 508,476.31 is: 701,663.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,400.32 : 1,264,571.67 = 508,476.31 : x
  2. Step 2: Convert to fraction form
    916,400.32/1,264,571.67 = 508,476.31/x
  3. Step 3: Cross multiply
    916,400.32x = 1,264,571.67 × 508,476.31
  4. Step 4: Simplify right side
    916,400.32x = 643,004,736,492.14
  5. Step 5: Solve for x
    x = 643,004,736,492.14/916,400.32
  6. Step 6: Final answer
    x = 701,663.59

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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.