Home / 1,089,009.80-1,630,404.30-977,035.40

Finding the Fourth Proportional to 1,089,009.80, 1,630,404.30 and 977,035.40

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Solution

The fourth proportional to 1,089,009.80, 1,630,404.30 and 977,035.40 is: 1,462,762.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,089,009.80 : 1,630,404.30 = 977,035.40 : x
  2. Step 2: Convert to fraction form
    1,089,009.80/1,630,404.30 = 977,035.40/x
  3. Step 3: Cross multiply
    1,089,009.80x = 1,630,404.30 × 977,035.40
  4. Step 4: Simplify right side
    1,089,009.80x = 1,592,962,717,412.22
  5. Step 5: Solve for x
    x = 1,592,962,717,412.22/1,089,009.80
  6. Step 6: Final answer
    x = 1,462,762.52

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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.