Finding the Fourth Proportional to 723,979.90, 999,237.63 and 418,106.08
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Solution
The fourth proportional to 723,979.90, 999,237.63 and 418,106.08 is: 577,070.34
Step by Step Solution
- Step 1: Write the proportion equation
723,979.90 : 999,237.63 = 418,106.08 : x - Step 2: Convert to fraction form
723,979.90/999,237.63 = 418,106.08/x - Step 3: Cross multiply
723,979.90x = 999,237.63 × 418,106.08 - Step 4: Simplify right side
723,979.90x = 417,787,328,467.79 - Step 5: Solve for x
x = 417,787,328,467.79/723,979.90 - Step 6: Final answer
x = 577,070.34
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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.