Finding the Fourth Proportional to 553,277.40, 829,916.10 and 402,811.80
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Solution
The fourth proportional to 553,277.40, 829,916.10 and 402,811.80 is: 604,217.70
Step by Step Solution
- Step 1: Write the proportion equation
553,277.40 : 829,916.10 = 402,811.80 : x - Step 2: Convert to fraction form
553,277.40/829,916.10 = 402,811.80/x - Step 3: Cross multiply
553,277.40x = 829,916.10 × 402,811.80 - Step 4: Simplify right side
553,277.40x = 334,299,998,089.98 - Step 5: Solve for x
x = 334,299,998,089.98/553,277.40 - Step 6: Final answer
x = 604,217.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.