Finding the Fourth Proportional to 495,217.80, 740,858.40 and 429,389.10
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Solution
The fourth proportional to 495,217.80, 740,858.40 and 429,389.10 is: 642,376.99
Step by Step Solution
- Step 1: Write the proportion equation
495,217.80 : 740,858.40 = 429,389.10 : x - Step 2: Convert to fraction form
495,217.80/740,858.40 = 429,389.10/x - Step 3: Cross multiply
495,217.80x = 740,858.40 × 429,389.10 - Step 4: Simplify right side
495,217.80x = 318,116,521,603.44 - Step 5: Solve for x
x = 318,116,521,603.44/495,217.80 - Step 6: Final answer
x = 642,376.99
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.