Home / 1,089,312.18-1,502,881.74-778,952.58

Finding the Fourth Proportional to 1,089,312.18, 1,502,881.74 and 778,952.58

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Solution

The fourth proportional to 1,089,312.18, 1,502,881.74 and 778,952.58 is: 1,074,690.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,089,312.18 : 1,502,881.74 = 778,952.58 : x
  2. Step 2: Convert to fraction form
    1,089,312.18/1,502,881.74 = 778,952.58/x
  3. Step 3: Cross multiply
    1,089,312.18x = 1,502,881.74 × 778,952.58
  4. Step 4: Simplify right side
    1,089,312.18x = 1,170,673,608,807.89
  5. Step 5: Solve for x
    x = 1,170,673,608,807.89/1,089,312.18
  6. Step 6: Final answer
    x = 1,074,690.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.