Home / 711,002.40-1,066,114.80-289,802.40

Finding the Fourth Proportional to 711,002.40, 1,066,114.80 and 289,802.40

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Solution

The fourth proportional to 711,002.40, 1,066,114.80 and 289,802.40 is: 434,545.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,002.40 : 1,066,114.80 = 289,802.40 : x
  2. Step 2: Convert to fraction form
    711,002.40/1,066,114.80 = 289,802.40/x
  3. Step 3: Cross multiply
    711,002.40x = 1,066,114.80 × 289,802.40
  4. Step 4: Simplify right side
    711,002.40x = 308,962,627,715.52
  5. Step 5: Solve for x
    x = 308,962,627,715.52/711,002.40
  6. Step 6: Final answer
    x = 434,545.13

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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.