Home / 648,317.79-972,266.40-215,920.17

Finding the Fourth Proportional to 648,317.79, 972,266.40 and 215,920.17

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Solution

The fourth proportional to 648,317.79, 972,266.40 and 215,920.17 is: 323,810.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,317.79 : 972,266.40 = 215,920.17 : x
  2. Step 2: Convert to fraction form
    648,317.79/972,266.40 = 215,920.17/x
  3. Step 3: Cross multiply
    648,317.79x = 972,266.40 × 215,920.17
  4. Step 4: Simplify right side
    648,317.79x = 209,931,926,373.29
  5. Step 5: Solve for x
    x = 209,931,926,373.29/648,317.79
  6. Step 6: Final answer
    x = 323,810.22

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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.