Finding the Fourth Proportional to 708,890.62, 978,230.17 and 402,924.53
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Solution
The fourth proportional to 708,890.62, 978,230.17 and 402,924.53 is: 556,013.75
Step by Step Solution
- Step 1: Write the proportion equation
708,890.62 : 978,230.17 = 402,924.53 : x - Step 2: Convert to fraction form
708,890.62/978,230.17 = 402,924.53/x - Step 3: Cross multiply
708,890.62x = 978,230.17 × 402,924.53 - Step 4: Simplify right side
708,890.62x = 394,152,931,479.07 - Step 5: Solve for x
x = 394,152,931,479.07/708,890.62 - Step 6: Final answer
x = 556,013.75
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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.