Home / 692,130.47-1,038,429.48-436,155.80

Finding the Fourth Proportional to 692,130.47, 1,038,429.48 and 436,155.80

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Solution

The fourth proportional to 692,130.47, 1,038,429.48 and 436,155.80 is: 654,381.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,130.47 : 1,038,429.48 = 436,155.80 : x
  2. Step 2: Convert to fraction form
    692,130.47/1,038,429.48 = 436,155.80/x
  3. Step 3: Cross multiply
    692,130.47x = 1,038,429.48 × 436,155.80
  4. Step 4: Simplify right side
    692,130.47x = 452,917,040,592.98
  5. Step 5: Solve for x
    x = 452,917,040,592.98/692,130.47
  6. Step 6: Final answer
    x = 654,381.02

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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.