Finding the Fourth Proportional to 984,472.18, 1,358,681.17 and 621,878.56
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Solution
The fourth proportional to 984,472.18, 1,358,681.17 and 621,878.56 is: 858,261.62
Step by Step Solution
- Step 1: Write the proportion equation
984,472.18 : 1,358,681.17 = 621,878.56 : x - Step 2: Convert to fraction form
984,472.18/1,358,681.17 = 621,878.56/x - Step 3: Cross multiply
984,472.18x = 1,358,681.17 × 621,878.56 - Step 4: Simplify right side
984,472.18x = 844,934,689,498.72 - Step 5: Solve for x
x = 844,934,689,498.72/984,472.18 - Step 6: Final answer
x = 858,261.62
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.