Home / 711,123.60-1,066,686.48-290,399.52

Finding the Fourth Proportional to 711,123.60, 1,066,686.48 and 290,399.52

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Solution

The fourth proportional to 711,123.60, 1,066,686.48 and 290,399.52 is: 435,599.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,123.60 : 1,066,686.48 = 290,399.52 : x
  2. Step 2: Convert to fraction form
    711,123.60/1,066,686.48 = 290,399.52/x
  3. Step 3: Cross multiply
    711,123.60x = 1,066,686.48 × 290,399.52
  4. Step 4: Simplify right side
    711,123.60x = 309,765,241,782.49
  5. Step 5: Solve for x
    x = 309,765,241,782.49/711,123.60
  6. Step 6: Final answer
    x = 435,599.72

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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.