Finding the Fourth Proportional to 817,511.51, 1,129,445.75 and 624,594.53
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Solution
The fourth proportional to 817,511.51, 1,129,445.75 and 624,594.53 is: 862,918.29
Step by Step Solution
- Step 1: Write the proportion equation
817,511.51 : 1,129,445.75 = 624,594.53 : x - Step 2: Convert to fraction form
817,511.51/1,129,445.75 = 624,594.53/x - Step 3: Cross multiply
817,511.51x = 1,129,445.75 × 624,594.53 - Step 4: Simplify right side
817,511.51x = 705,445,637,381.75 - Step 5: Solve for x
x = 705,445,637,381.75/817,511.51 - Step 6: Final answer
x = 862,918.29
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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.