Finding the Fourth Proportional to 1,521,461.13, 2,099,681.99 and 842,397.63
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Solution
The fourth proportional to 1,521,461.13, 2,099,681.99 and 842,397.63 is: 1,162,545.07
Step by Step Solution
- Step 1: Write the proportion equation
1,521,461.13 : 2,099,681.99 = 842,397.63 : x - Step 2: Convert to fraction form
1,521,461.13/2,099,681.99 = 842,397.63/x - Step 3: Cross multiply
1,521,461.13x = 2,099,681.99 × 842,397.63 - Step 4: Simplify right side
1,521,461.13x = 1,768,767,132,129.68 - Step 5: Solve for x
x = 1,768,767,132,129.68/1,521,461.13 - Step 6: Final answer
x = 1,162,545.07
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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.