Home / 578,985.96-869,813.82-555,071.40

Finding the Fourth Proportional to 578,985.96, 869,813.82 and 555,071.40

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Solution

The fourth proportional to 578,985.96, 869,813.82 and 555,071.40 is: 833,886.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,985.96 : 869,813.82 = 555,071.40 : x
  2. Step 2: Convert to fraction form
    578,985.96/869,813.82 = 555,071.40/x
  3. Step 3: Cross multiply
    578,985.96x = 869,813.82 × 555,071.40
  4. Step 4: Simplify right side
    578,985.96x = 482,808,774,806.75
  5. Step 5: Solve for x
    x = 482,808,774,806.75/578,985.96
  6. Step 6: Final answer
    x = 833,886.84

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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.