Home / 578,731.60-868,097.40-368,779.60

Finding the Fourth Proportional to 578,731.60, 868,097.40 and 368,779.60

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Solution

The fourth proportional to 578,731.60, 868,097.40 and 368,779.60 is: 553,169.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,731.60 : 868,097.40 = 368,779.60 : x
  2. Step 2: Convert to fraction form
    578,731.60/868,097.40 = 368,779.60/x
  3. Step 3: Cross multiply
    578,731.60x = 868,097.40 × 368,779.60
  4. Step 4: Simplify right side
    578,731.60x = 320,136,611,933.04
  5. Step 5: Solve for x
    x = 320,136,611,933.04/578,731.60
  6. Step 6: Final answer
    x = 553,169.40

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1.5x scale

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.