Finding the Fourth Proportional to 724,281.18, 999,631.73 and 418,302.57
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Solution
The fourth proportional to 724,281.18, 999,631.73 and 418,302.57 is: 577,328.99
Step by Step Solution
- Step 1: Write the proportion equation
724,281.18 : 999,631.73 = 418,302.57 : x - Step 2: Convert to fraction form
724,281.18/999,631.73 = 418,302.57/x - Step 3: Cross multiply
724,281.18x = 999,631.73 × 418,302.57 - Step 4: Simplify right side
724,281.18x = 418,148,521,712.55 - Step 5: Solve for x
x = 418,148,521,712.55/724,281.18 - Step 6: Final answer
x = 577,328.99
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1.5x scale
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.