Finding the Fourth Proportional to 865,503.35, 1,298,254.84 and 360,054.71
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Solution
The fourth proportional to 865,503.35, 1,298,254.84 and 360,054.71 is: 540,081.99
Step by Step Solution
- Step 1: Write the proportion equation
865,503.35 : 1,298,254.84 = 360,054.71 : x - Step 2: Convert to fraction form
865,503.35/1,298,254.84 = 360,054.71/x - Step 3: Cross multiply
865,503.35x = 1,298,254.84 × 360,054.71 - Step 4: Simplify right side
865,503.35x = 467,442,769,922.30 - Step 5: Solve for x
x = 467,442,769,922.30/865,503.35 - Step 6: Final answer
x = 540,081.99
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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.