Finding the Fourth Proportional to 900,637.91, 1,242,676.83 and 537,990.79
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Solution
The fourth proportional to 900,637.91, 1,242,676.83 and 537,990.79 is: 742,305.73
Step by Step Solution
- Step 1: Write the proportion equation
900,637.91 : 1,242,676.83 = 537,990.79 : x - Step 2: Convert to fraction form
900,637.91/1,242,676.83 = 537,990.79/x - Step 3: Cross multiply
900,637.91x = 1,242,676.83 × 537,990.79 - Step 4: Simplify right side
900,637.91x = 668,548,683,273.01 - Step 5: Solve for x
x = 668,548,683,273.01/900,637.91 - Step 6: Final answer
x = 742,305.73
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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.