Finding the Fourth Proportional to 742,521.98, 1,024,502.92 and 452,130.10
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Solution
The fourth proportional to 742,521.98, 1,024,502.92 and 452,130.10 is: 623,831.50
Step by Step Solution
- Step 1: Write the proportion equation
742,521.98 : 1,024,502.92 = 452,130.10 : x - Step 2: Convert to fraction form
742,521.98/1,024,502.92 = 452,130.10/x - Step 3: Cross multiply
742,521.98x = 1,024,502.92 × 452,130.10 - Step 4: Simplify right side
742,521.98x = 463,208,603,978.31 - Step 5: Solve for x
x = 463,208,603,978.31/742,521.98 - Step 6: Final answer
x = 623,831.50
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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.