Finding the Fourth Proportional to 1,858,117.17, 2,564,197.49 and 1,031,317.38
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Solution
The fourth proportional to 1,858,117.17, 2,564,197.49 and 1,031,317.38 is: 1,423,215.65
Step by Step Solution
- Step 1: Write the proportion equation
1,858,117.17 : 2,564,197.49 = 1,031,317.38 : x - Step 2: Convert to fraction form
1,858,117.17/2,564,197.49 = 1,031,317.38/x - Step 3: Cross multiply
1,858,117.17x = 2,564,197.49 × 1,031,317.38 - Step 4: Simplify right side
1,858,117.17x = 2,644,501,432,032.79 - Step 5: Solve for x
x = 2,644,501,432,032.79/1,858,117.17 - Step 6: Final answer
x = 1,423,215.65
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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.