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Finding the Fourth Proportional to 501,575.52, 692,174.32 and 286,720.32

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Solution

The fourth proportional to 501,575.52, 692,174.32 and 286,720.32 is: 395,674.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,575.52 : 692,174.32 = 286,720.32 : x
  2. Step 2: Convert to fraction form
    501,575.52/692,174.32 = 286,720.32/x
  3. Step 3: Cross multiply
    501,575.52x = 692,174.32 × 286,720.32
  4. Step 4: Simplify right side
    501,575.52x = 198,460,442,526.18
  5. Step 5: Solve for x
    x = 198,460,442,526.18/501,575.52
  6. Step 6: Final answer
    x = 395,674.10

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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.