Home / 745,801.60-1,118,702.40-409,878.40

Finding the Fourth Proportional to 745,801.60, 1,118,702.40 and 409,878.40

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Solution

The fourth proportional to 745,801.60, 1,118,702.40 and 409,878.40 is: 614,817.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,801.60 : 1,118,702.40 = 409,878.40 : x
  2. Step 2: Convert to fraction form
    745,801.60/1,118,702.40 = 409,878.40/x
  3. Step 3: Cross multiply
    745,801.60x = 1,118,702.40 × 409,878.40
  4. Step 4: Simplify right side
    745,801.60x = 458,531,949,788.16
  5. Step 5: Solve for x
    x = 458,531,949,788.16/745,801.60
  6. Step 6: Final answer
    x = 614,817.60

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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.