Finding the Fourth Proportional to 912,271.47, 1,258,658.31 and 636,621.99
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Solution
The fourth proportional to 912,271.47, 1,258,658.31 and 636,621.99 is: 878,345.52
Step by Step Solution
- Step 1: Write the proportion equation
912,271.47 : 1,258,658.31 = 636,621.99 : x - Step 2: Convert to fraction form
912,271.47/1,258,658.31 = 636,621.99/x - Step 3: Cross multiply
912,271.47x = 1,258,658.31 × 636,621.99 - Step 4: Simplify right side
912,271.47x = 801,289,558,042.24 - Step 5: Solve for x
x = 801,289,558,042.24/912,271.47 - Step 6: Final answer
x = 878,345.52
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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.