Finding the Fourth Proportional to 1,226,647.07, 1,692,483.76 and 1,031,156.95
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Solution
The fourth proportional to 1,226,647.07, 1,692,483.76 and 1,031,156.95 is: 1,422,753.48
Step by Step Solution
- Step 1: Write the proportion equation
1,226,647.07 : 1,692,483.76 = 1,031,156.95 : x - Step 2: Convert to fraction form
1,226,647.07/1,692,483.76 = 1,031,156.95/x - Step 3: Cross multiply
1,226,647.07x = 1,692,483.76 × 1,031,156.95 - Step 4: Simplify right side
1,226,647.07x = 1,745,216,384,977.19 - Step 5: Solve for x
x = 1,745,216,384,977.19/1,226,647.07 - Step 6: Final answer
x = 1,422,753.48
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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.