Finding the Fourth Proportional to 742,519.08, 1,024,675.68 and 402,987.60
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Solution
The fourth proportional to 742,519.08, 1,024,675.68 and 402,987.60 is: 556,122.54
Step by Step Solution
- Step 1: Write the proportion equation
742,519.08 : 1,024,675.68 = 402,987.60 : x - Step 2: Convert to fraction form
742,519.08/1,024,675.68 = 402,987.60/x - Step 3: Cross multiply
742,519.08x = 1,024,675.68 × 402,987.60 - Step 4: Simplify right side
742,519.08x = 412,931,593,061.57 - Step 5: Solve for x
x = 412,931,593,061.57/742,519.08 - Step 6: Final answer
x = 556,122.54
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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.