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Finding the Fourth Proportional to 646,036.50, 891,614.98 and 370,502.30

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Solution

The fourth proportional to 646,036.50, 891,614.98 and 370,502.30 is: 511,341.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,036.50 : 891,614.98 = 370,502.30 : x
  2. Step 2: Convert to fraction form
    646,036.50/891,614.98 = 370,502.30/x
  3. Step 3: Cross multiply
    646,036.50x = 891,614.98 × 370,502.30
  4. Step 4: Simplify right side
    646,036.50x = 330,345,400,804.45
  5. Step 5: Solve for x
    x = 330,345,400,804.45/646,036.50
  6. Step 6: Final answer
    x = 511,341.70

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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.