Home / 692,068.60-1,036,985.10-391,655.80

Finding the Fourth Proportional to 692,068.60, 1,036,985.10 and 391,655.80

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Solution

The fourth proportional to 692,068.60, 1,036,985.10 and 391,655.80 is: 586,851.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,068.60 : 1,036,985.10 = 391,655.80 : x
  2. Step 2: Convert to fraction form
    692,068.60/1,036,985.10 = 391,655.80/x
  3. Step 3: Cross multiply
    692,068.60x = 1,036,985.10 × 391,655.80
  4. Step 4: Simplify right side
    692,068.60x = 406,141,228,928.58
  5. Step 5: Solve for x
    x = 406,141,228,928.58/692,068.60
  6. Step 6: Final answer
    x = 586,851.11

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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.