Finding the Fourth Proportional to 742,106.30, 1,024,108.66 and 402,574.55
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Solution
The fourth proportional to 742,106.30, 1,024,108.66 and 402,574.55 is: 555,553.94
Step by Step Solution
- Step 1: Write the proportion equation
742,106.30 : 1,024,108.66 = 402,574.55 : x - Step 2: Convert to fraction form
742,106.30/1,024,108.66 = 402,574.55/x - Step 3: Cross multiply
742,106.30x = 1,024,108.66 × 402,574.55 - Step 4: Simplify right side
742,106.30x = 412,280,077,830.06 - Step 5: Solve for x
x = 412,280,077,830.06/742,106.30 - Step 6: Final answer
x = 555,553.94
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1.5x scale
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.