Home / 909,878.40-1,365,940.80-572,918.40

Finding the Fourth Proportional to 909,878.40, 1,365,940.80 and 572,918.40

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Solution

The fourth proportional to 909,878.40, 1,365,940.80 and 572,918.40 is: 860,084.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,878.40 : 1,365,940.80 = 572,918.40 : x
  2. Step 2: Convert to fraction form
    909,878.40/1,365,940.80 = 572,918.40/x
  3. Step 3: Cross multiply
    909,878.40x = 1,365,940.80 × 572,918.40
  4. Step 4: Simplify right side
    909,878.40x = 782,572,617,630.72
  5. Step 5: Solve for x
    x = 782,572,617,630.72/909,878.40
  6. Step 6: Final answer
    x = 860,084.84

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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.