Finding the Fourth Proportional to 3,157,691.93, 4,357,617.95 and 1,707,386.99
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Solution
The fourth proportional to 3,157,691.93, 4,357,617.95 and 1,707,386.99 is: 2,356,195.71
Step by Step Solution
- Step 1: Write the proportion equation
3,157,691.93 : 4,357,617.95 = 1,707,386.99 : x - Step 2: Convert to fraction form
3,157,691.93/4,357,617.95 = 1,707,386.99/x - Step 3: Cross multiply
3,157,691.93x = 4,357,617.95 × 1,707,386.99 - Step 4: Simplify right side
3,157,691.93x = 7,440,140,164,895.45 - Step 5: Solve for x
x = 7,440,140,164,895.45/3,157,691.93 - Step 6: Final answer
x = 2,356,195.71
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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.