Home / 915,389.96-1,263,312.65-507,619.49

Finding the Fourth Proportional to 915,389.96, 1,263,312.65 and 507,619.49

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Solution

The fourth proportional to 915,389.96, 1,263,312.65 and 507,619.49 is: 700,556.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,389.96 : 1,263,312.65 = 507,619.49 : x
  2. Step 2: Convert to fraction form
    915,389.96/1,263,312.65 = 507,619.49/x
  3. Step 3: Cross multiply
    915,389.96x = 1,263,312.65 × 507,619.49
  4. Step 4: Simplify right side
    915,389.96x = 641,282,118,056.03
  5. Step 5: Solve for x
    x = 641,282,118,056.03/915,389.96
  6. Step 6: Final answer
    x = 700,556.21

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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.