Finding the Fourth Proportional to 913,156.92, 1,260,132.30 and 505,248.12
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Solution
The fourth proportional to 913,156.92, 1,260,132.30 and 505,248.12 is: 697,228.99
Step by Step Solution
- Step 1: Write the proportion equation
913,156.92 : 1,260,132.30 = 505,248.12 : x - Step 2: Convert to fraction form
913,156.92/1,260,132.30 = 505,248.12/x - Step 3: Cross multiply
913,156.92x = 1,260,132.30 × 505,248.12 - Step 4: Simplify right side
913,156.92x = 636,679,475,526.28 - Step 5: Solve for x
x = 636,679,475,526.28/913,156.92 - Step 6: Final answer
x = 697,228.99
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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.