Home / 711,014.40-1,066,132.80-289,814.40

Finding the Fourth Proportional to 711,014.40, 1,066,132.80 and 289,814.40

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Solution

The fourth proportional to 711,014.40, 1,066,132.80 and 289,814.40 is: 434,563.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,014.40 : 1,066,132.80 = 289,814.40 : x
  2. Step 2: Convert to fraction form
    711,014.40/1,066,132.80 = 289,814.40/x
  3. Step 3: Cross multiply
    711,014.40x = 1,066,132.80 × 289,814.40
  4. Step 4: Simplify right side
    711,014.40x = 308,980,637,752.32
  5. Step 5: Solve for x
    x = 308,980,637,752.32/711,014.40
  6. Step 6: Final answer
    x = 434,563.12

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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.