Finding the Fourth Proportional to 1,221,889.29, 1,687,966.14 and 976,559.95
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Solution
The fourth proportional to 1,221,889.29, 1,687,966.14 and 976,559.95 is: 1,349,058.50
Step by Step Solution
- Step 1: Write the proportion equation
1,221,889.29 : 1,687,966.14 = 976,559.95 : x - Step 2: Convert to fraction form
1,221,889.29/1,687,966.14 = 976,559.95/x - Step 3: Cross multiply
1,221,889.29x = 1,687,966.14 × 976,559.95 - Step 4: Simplify right side
1,221,889.29x = 1,648,400,129,280.09 - Step 5: Solve for x
x = 1,648,400,129,280.09/1,221,889.29 - Step 6: Final answer
x = 1,349,058.50
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.