Home / 501,500.36-692,070.49-286,645.04

Finding the Fourth Proportional to 501,500.36, 692,070.49 and 286,645.04

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Solution

The fourth proportional to 501,500.36, 692,070.49 and 286,645.04 is: 395,570.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,500.36 : 692,070.49 = 286,645.04 : x
  2. Step 2: Convert to fraction form
    501,500.36/692,070.49 = 286,645.04/x
  3. Step 3: Cross multiply
    501,500.36x = 692,070.49 × 286,645.04
  4. Step 4: Simplify right side
    501,500.36x = 198,378,573,288.87
  5. Step 5: Solve for x
    x = 198,378,573,288.87/501,500.36
  6. Step 6: Final answer
    x = 395,570.15

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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.