Home / 572,985.64-858,663.42-422,038.90

Finding the Fourth Proportional to 572,985.64, 858,663.42 and 422,038.90

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Solution

The fourth proportional to 572,985.64, 858,663.42 and 422,038.90 is: 632,458.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,985.64 : 858,663.42 = 422,038.90 : x
  2. Step 2: Convert to fraction form
    572,985.64/858,663.42 = 422,038.90/x
  3. Step 3: Cross multiply
    572,985.64x = 858,663.42 × 422,038.90
  4. Step 4: Simplify right side
    572,985.64x = 362,389,365,247.04
  5. Step 5: Solve for x
    x = 362,389,365,247.04/572,985.64
  6. Step 6: Final answer
    x = 632,458.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.