Finding the Fourth Proportional to 712,374.84, 1,068,679.08 and 338,271.48
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Solution
The fourth proportional to 712,374.84, 1,068,679.08 and 338,271.48 is: 507,462.69
Step by Step Solution
- Step 1: Write the proportion equation
712,374.84 : 1,068,679.08 = 338,271.48 : x - Step 2: Convert to fraction form
712,374.84/1,068,679.08 = 338,271.48/x - Step 3: Cross multiply
712,374.84x = 1,068,679.08 × 338,271.48 - Step 4: Simplify right side
712,374.84x = 361,503,654,036.64 - Step 5: Solve for x
x = 361,503,654,036.64/712,374.84 - Step 6: Final answer
x = 507,462.69
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.