Finding the Fourth Proportional to 688,732.98, 1,031,381.30 and 435,248.75
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Solution
The fourth proportional to 688,732.98, 1,031,381.30 and 435,248.75 is: 651,787.31
Step by Step Solution
- Step 1: Write the proportion equation
688,732.98 : 1,031,381.30 = 435,248.75 : x - Step 2: Convert to fraction form
688,732.98/1,031,381.30 = 435,248.75/x - Step 3: Cross multiply
688,732.98x = 1,031,381.30 × 435,248.75 - Step 4: Simplify right side
688,732.98x = 448,907,414,265.23 - Step 5: Solve for x
x = 448,907,414,265.23/688,732.98 - Step 6: Final answer
x = 651,787.31
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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.