Finding the Fourth Proportional to 747,656.76, 1,031,746.50 and 687,470.52
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Solution
The fourth proportional to 747,656.76, 1,031,746.50 and 687,470.52 is: 948,691.09
Step by Step Solution
- Step 1: Write the proportion equation
747,656.76 : 1,031,746.50 = 687,470.52 : x - Step 2: Convert to fraction form
747,656.76/1,031,746.50 = 687,470.52/x - Step 3: Cross multiply
747,656.76x = 1,031,746.50 × 687,470.52 - Step 4: Simplify right side
747,656.76x = 709,295,302,863.18 - Step 5: Solve for x
x = 709,295,302,863.18/747,656.76 - Step 6: Final answer
x = 948,691.09
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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.