Home / 913,220.46-1,260,158.45-618,270.21

Finding the Fourth Proportional to 913,220.46, 1,260,158.45 and 618,270.21

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Solution

The fourth proportional to 913,220.46, 1,260,158.45 and 618,270.21 is: 853,154.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,220.46 : 1,260,158.45 = 618,270.21 : x
  2. Step 2: Convert to fraction form
    913,220.46/1,260,158.45 = 618,270.21/x
  3. Step 3: Cross multiply
    913,220.46x = 1,260,158.45 × 618,270.21
  4. Step 4: Simplify right side
    913,220.46x = 779,118,426,423.42
  5. Step 5: Solve for x
    x = 779,118,426,423.42/913,220.46
  6. Step 6: Final answer
    x = 853,154.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.