Finding the Fourth Proportional to 1,129,587.10, 1,558,848.08 and 613,340.71
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Solution
The fourth proportional to 1,129,587.10, 1,558,848.08 and 613,340.71 is: 846,419.89
Step by Step Solution
- Step 1: Write the proportion equation
1,129,587.10 : 1,558,848.08 = 613,340.71 : x - Step 2: Convert to fraction form
1,129,587.10/1,558,848.08 = 613,340.71/x - Step 3: Cross multiply
1,129,587.10x = 1,558,848.08 × 613,340.71 - Step 4: Simplify right side
1,129,587.10x = 956,104,988,169.34 - Step 5: Solve for x
x = 956,104,988,169.34/1,129,587.10 - Step 6: Final answer
x = 846,419.89
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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.