Finding the Fourth Proportional to 426,848.80, 638,890.80 and 302,432.80
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Solution
The fourth proportional to 426,848.80, 638,890.80 and 302,432.80 is: 452,669.74
Step by Step Solution
- Step 1: Write the proportion equation
426,848.80 : 638,890.80 = 302,432.80 : x - Step 2: Convert to fraction form
426,848.80/638,890.80 = 302,432.80/x - Step 3: Cross multiply
426,848.80x = 638,890.80 × 302,432.80 - Step 4: Simplify right side
426,848.80x = 193,221,533,538.24 - Step 5: Solve for x
x = 193,221,533,538.24/426,848.80 - Step 6: Final answer
x = 452,669.74
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1.5x scale
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.