Home / 1,077,075.80-1,615,613.70-318,944.60

Finding the Fourth Proportional to 1,077,075.80, 1,615,613.70 and 318,944.60

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Solution

The fourth proportional to 1,077,075.80, 1,615,613.70 and 318,944.60 is: 478,416.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,077,075.80 : 1,615,613.70 = 318,944.60 : x
  2. Step 2: Convert to fraction form
    1,077,075.80/1,615,613.70 = 318,944.60/x
  3. Step 3: Cross multiply
    1,077,075.80x = 1,615,613.70 × 318,944.60
  4. Step 4: Simplify right side
    1,077,075.80x = 515,291,265,301.02
  5. Step 5: Solve for x
    x = 515,291,265,301.02/1,077,075.80
  6. Step 6: Final answer
    x = 478,416.90

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1.5x scale

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.