Home / 1,070,475.81-1,605,778.58-430,777.10

Finding the Fourth Proportional to 1,070,475.81, 1,605,778.58 and 430,777.10

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Solution

The fourth proportional to 1,070,475.81, 1,605,778.58 and 430,777.10 is: 646,191.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,070,475.81 : 1,605,778.58 = 430,777.10 : x
  2. Step 2: Convert to fraction form
    1,070,475.81/1,605,778.58 = 430,777.10/x
  3. Step 3: Cross multiply
    1,070,475.81x = 1,605,778.58 × 430,777.10
  4. Step 4: Simplify right side
    1,070,475.81x = 691,732,629,751.74
  5. Step 5: Solve for x
    x = 691,732,629,751.74/1,070,475.81
  6. Step 6: Final answer
    x = 646,191.74

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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.