Finding the Fourth Proportional to 817,742.01, 1,128,484.04 and 455,158.07
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Solution
The fourth proportional to 817,742.01, 1,128,484.04 and 455,158.07 is: 628,118.16
Step by Step Solution
- Step 1: Write the proportion equation
817,742.01 : 1,128,484.04 = 455,158.07 : x - Step 2: Convert to fraction form
817,742.01/1,128,484.04 = 455,158.07/x - Step 3: Cross multiply
817,742.01x = 1,128,484.04 × 455,158.07 - Step 4: Simplify right side
817,742.01x = 513,638,609,753.99 - Step 5: Solve for x
x = 513,638,609,753.99/817,742.01 - Step 6: Final answer
x = 628,118.16
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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.