Home / 710,860.60-1,066,895.70-290,438.20

Finding the Fourth Proportional to 710,860.60, 1,066,895.70 and 290,438.20

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Solution

The fourth proportional to 710,860.60, 1,066,895.70 and 290,438.20 is: 435,904.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,860.60 : 1,066,895.70 = 290,438.20 : x
  2. Step 2: Convert to fraction form
    710,860.60/1,066,895.70 = 290,438.20/x
  3. Step 3: Cross multiply
    710,860.60x = 1,066,895.70 × 290,438.20
  4. Step 4: Simplify right side
    710,860.60x = 309,867,266,695.74
  5. Step 5: Solve for x
    x = 309,867,266,695.74/710,860.60
  6. Step 6: Final answer
    x = 435,904.40

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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.