Home / 1,132,438.60-1,698,657.90-458,518.60

Finding the Fourth Proportional to 1,132,438.60, 1,698,657.90 and 458,518.60

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Solution

The fourth proportional to 1,132,438.60, 1,698,657.90 and 458,518.60 is: 687,777.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,132,438.60 : 1,698,657.90 = 458,518.60 : x
  2. Step 2: Convert to fraction form
    1,132,438.60/1,698,657.90 = 458,518.60/x
  3. Step 3: Cross multiply
    1,132,438.60x = 1,698,657.90 × 458,518.60
  4. Step 4: Simplify right side
    1,132,438.60x = 778,866,242,186.94
  5. Step 5: Solve for x
    x = 778,866,242,186.94/1,132,438.60
  6. Step 6: Final answer
    x = 687,777.90

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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.