Finding the Fourth Proportional to 1,357,811.16, 1,873,780.56 and 745,965.12
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Solution
The fourth proportional to 1,357,811.16, 1,873,780.56 and 745,965.12 is: 1,029,432.50
Step by Step Solution
- Step 1: Write the proportion equation
1,357,811.16 : 1,873,780.56 = 745,965.12 : x - Step 2: Convert to fraction form
1,357,811.16/1,873,780.56 = 745,965.12/x - Step 3: Cross multiply
1,357,811.16x = 1,873,780.56 × 745,965.12 - Step 4: Simplify right side
1,357,811.16x = 1,397,774,940,294.07 - Step 5: Solve for x
x = 1,397,774,940,294.07/1,357,811.16 - Step 6: Final answer
x = 1,029,432.50
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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.