Finding the Fourth Proportional to 742,582.68, 1,024,766.72 and 403,050.88
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Solution
The fourth proportional to 742,582.68, 1,024,766.72 and 403,050.88 is: 556,211.64
Step by Step Solution
- Step 1: Write the proportion equation
742,582.68 : 1,024,766.72 = 403,050.88 : x - Step 2: Convert to fraction form
742,582.68/1,024,766.72 = 403,050.88/x - Step 3: Cross multiply
742,582.68x = 1,024,766.72 × 403,050.88 - Step 4: Simplify right side
742,582.68x = 413,033,128,290.71 - Step 5: Solve for x
x = 413,033,128,290.71/742,582.68 - Step 6: Final answer
x = 556,211.64
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.